C=2 a=2* *58=26. Circumference = 2·π·r = 2·3. 45 m C. 38cm Area = 300cm Area = pi*r^2; r^2 = Area/pi; r^2 = 300/3. 38 meters. 2 Thus, the circumference of a circle with a diameter of 30 centimeters is 94. Solution: circumference = diameter * pi; c = d * pi; c = 45 * 3. c = 45 * 3. Write cos (arccos (8x) − arcsin (8x)) as an algebraic expression. Worksheet #3. 562 millimeters. 54; r = 9. 99621 ft. Its elegant simplicity is even reflected in its formulas for finding the circumference and area of any circle: C = 2πr C = 2 π r. Five-year-old Svetlana is on a behavior modification plan in school. 14) =7. 16 square meters is 75. 7 cm. 28 in. 25 (*) In terms of diameter:. 16 r^2 = 452. 9 = 43. Question. 25: 37. Using the formula C = 2 r, the circumference of a circle with diameter of 28 inches is 88 in. Anyways just plug in the numbers and you get you answer. Since the diameter d d is equal to 2 2 times the radius r r, the formula for circumference using radius is 2πr 2 π r. No matter the size of the circle, the ratio of the circumference and diameter will be the same. π is roughly equal to 3. This tutorial shows you how! Virtual Nerd's patent-pending tutorial system provides in-context information, hints, and links to supporting tutorials, synchronized with videos, each 3 to 7 minutes long. B. 9. 85 m. 61. Now I could multiply this out. If the area of a circle is 58 square feet, the circumference is 26. 51 ft. 14. 7 yards. (Use 3. Circumference = Diameter x π. 56. Simply multiply the radius of the circle by 2 and then multiply the result by to calculate the circumference. 84. 74 cm The circumference of a. Rating. It can be thought of as the counterpart of the perimeter of polygons. 38 cm. 7 inches exactly or limited to de precision of this calculator (13 decimal places). 75. π equals the number 3. If the area of a circle is 58 square feet, find the circumference. In this lesson, we will investigate how to calculate the circumference of a circle. Weegy: 2. 8π. 14*3. 16 square meters is 75. 265 cm. Weegy: The goal of aggression is to remove the obstacle that's causing frustration. 3. If radius and diameter are unknown, you can calculate it from the circumference: a = c² / 4π. 14*12 = 75. About Transcript The area of a circle is pi times the radius squared (A = π r²). The circumference of the circle is 16 π units or. ) A. 14 * r^2 r^2 = 58/3. circumference = diameter * pi c = d * pi c = 45 * 3. The area of a circle is pi times the radius squared (A = π r²). Log in for more information. The equation solved for r is r=c/2pi. 14*9. 14 *r, r = 48 /(2*3. LOL what are the chances of you. 85/3. 1 m: 78. Plugging this value into the formula, we get C = 2π(30. A square is inscribed in a circle with radius 'r'. B. 3984 meters. Log in for more information. J! Need help with calculating the circumference of a circle? You're in the right place!Whether you're just star. A. Pre-Algebra. 74 cm B. 37 in. 61. Thus, the circumference of the circle = 94. C = 3. Diameter 10 inches: radius = 10/2 = 5 inches. 15 people found it helpful. 29 = 26. C= 2 x 3. 5. C. If the area of a circle is 58 square feet, find the circumference If the area of a circle is 58 square feet, the circumference is 26. 2. 64 inches. cm C. 98 inches exactly or limited to de precision of this calculator (13 decimal places). Log in for more information. 99621 ft. Pi π π is approximately equal to 3. You are given the area of a circle. ) The circumference of a circle that has an area of 452. Therefore, the circumference of the circle is 87. Units. C = π·d. r = 45/2 = 22. 98 m is the circumference of a circle with a radius of 7m. 42. With our tool, you can find the circumference, area, radius & diameter of a circle within seconds. B. The equation solved for r is r = r equals StartFraction C Over 2 pi EndFraction. Diameter. Get answers from Weegy and a team of really smart live experts. This answer has been confirmed as correct and helpful. Weegy: If the area of a circle is 58 square feet, the circumference is 27 ft. 14, thus, the math to calculate the circumference of a circle with a diameter of 30 is: 30 x 3. cm B. ) A. 3984 meter. Circle Circumference by Diameter. Created by Sal. A = π⋅ (6in)2 =113in2. Find the circumference of a circle if the area is 300 square centimeters. Circumference = 2 r where "Circumference" represents the total distance around the circle, " " is a mathematical constant approximately equal to 3. 1416 as the value of Ï . 99ft Log in for more information. 26. 16 square meters. The dimensions could be the diameter, in inches Jessa used to draw her circle is 18. 14*9. 38 cm. The circumference of a circle is S=2pir where r =radius The area of cirlce is A=pir^2 The diameter is twice the radius d=2r=>r=6 So the. Calculate. 25 cm D. To begin with, remember that pi is an irrational number written with the symbol π. Perimeter of a Sector Formula. If the area of a circle is 58 square feet, the circumference is 26. (Use 3. 708 cm. Score . 99 ft. 16 /3. Area of a circle with radius r is given by the formula A = πr 2. Formula 3: When the area of a circle is known, we can write the formula to find the perimeter of the circle as: C = √ (4πA) Here, C = Circumference of the circle. Therefore, the circumference circle equation is C $= 2$πr. 7 ft . Find the circumference of a circle that has an area of 452. 44 in. The circumference of a circle that has an area of 452. 16 /3. Using the formula C = 2 r, find the circumference of a circle with diameter of 28 inches. Where, pi ( π) equals approximately 3. 8 inches B. The circumference of a circle with a diameter of 45 centimeters is 141. You can find the diamater of a circle like a button by dividing its circumference by Pi or 3. 16 square meters. This video explains how to calculate the circumference of a circle. Weegy: 87. 79 feet. 84 inches. Round your answer to the nearest inch. 5 ft. Cheruiyot. 4. Area = pi*r^2 = 3. A. Now, if you wanted to calculate something very large, let’s say we wanted to calculate the circumference of the known universe, which is going to be a huge thing. 4 centimeters C. 38 cm B. The circumference of a circle with a diameter of 30 centimeters is: 94. So, an alternative formula for the circumference of a circle is: (C = 2 pi r) A one-minute video on how to show the circumference of a circle is π x diameter. Edit. 14*r^2 , area = 300 , r^2 = 300/3. 61. Solution: circumference = diameter * pi c = d * pi c = 45 * 3. Weegy: A ray has one endpoint and continues forever in one direction. If you are interested in calculations of some fraction of a circle, check:The circumference of a circle is pi times its diameter. 24 meters C. Find the circumference of a circle if the area is 300 square centimeters. 14. r = sqr (A/pi) r = sqr (452. 75. (Use 3. 3984 meters. 14 * 300 cm^2 C = 2 * sqrt 942 cm^2 C = 2 * 30. The circumference is the distance around a circle. 14 ⋅ 64. C = 3. 1) (7. weegy. 25 cm C. This answer has been confirmed as correct and helpful. 14*9. 7 into the formula for the area of a circle. 99 ft. 12 meters C. 14 *r^2 , r^2 =58/3. 16 square meters is 75. A circle circumference and radius are proportional. 14·30 = 94. D. Using the formula c=pir find the circumference of a circle with a diameter of 28 inches round your answer to the nearest tenth . 1415 * 7m = 43. 2. 6. ) A. 64 inches. 3984 meters". If your calculator doesn't have a PI (Π. 77 cm Weegy: The circumference or a circle is equal to 2 r, the area of the circle is equal to r^2. 1. Diameter = 2 Circumference ≈ 6. Circumference = πd. ) A. 4. The circumference of a circle of radius 3 is 2 ⋅ π ⋅ 3 2 ⋅ π ⋅ 3, which is 6π 6 π, or about 18. 14*12 = 75. 88 in. Question. 14 = 141. 6992 meters D. r ≈ 10. Added 8/28/2020 11:43:12 PM. Expert answered| ishm |Points 6577|. Let's say that the circumference of a given circle is 20 inches. 29 inches. Diameter. 38 cm. Solution: = *. The circumference of a circle with a diameter of 12 ft is: 37. 29 = 26. cm D. The equation for the area of a circle is: A = πr². heart. Since we have two semi-circles we can find the circumference of one whole circle with a radius of 4, which would be 8π. 3984 meters C. 6992 meters B. 5414 , r = 9. Multiply 2π 2 π by r r. 0 Answers/Comments. 7 Developing circumference (c) = pi * diameter c = 3. 4 (rounded). 84. 4. 1416 * 45 c = 141. 74 cm The circumference of a circle if the area is 300 square centimeters. 1416 * 452. 6992 meters D. It is harder to describe the shape of. 6 pi meters. 7 ft. Theory. (Use 3. The circumference of a circle with a diameter of 45 centimeters is: "141. 29 , Circumference =2 *pi *r = 2 *3. The value of circumference gets stored in the cf named variable. C = 16 π. B. Question|Asked by isangie0. 43. The diameter of a circle whose circumference is 18. Weegy: Angle is comprised of two rays that share a common endpoint called a vertex. Summary: The number is the ratio of the circumference of a circle to its diameter. 37. ; The area should equal A = π × (8 cm)² = 201. The first one is used when the shape of the ellipse is almost a circle (i. 5 ft. Therefore, the area for this example is 615. Circumference = Diameter x π. 99ft. C = 2·π·r. You can also use the formula for the circumference of a circle using the radius which is C equals 2 pi R where R is the radius. 14) plug numbers into calculator and get radiusWe can use the formula below to calculate the circumference of the circle: c = 2 * π * r. 56. The length. 43. This online calculator will calculate the 3 unknown values of a sphere given any 1 known variable including radius r, surface area A, volume V and circumference C. [ This is Because it is the most recent life era, the rock layers are better preserved, and in. star. 37. Questions. 25: 7. 0 cm: 94. 14159. ; The circumference should equal c = 2π × 8 cm = 50. 5 ft. 25 cm C. Circumference: the distance around the circle, or the length of a circuit along the circle. You can find a circle’s circumference using its radius and the constant π using the formula: C = 2πr. 14 × 2 = 25. It is a fundamental object studied in geometry. 28318. What is the circumference of a circle with a diameter of 45 centimeters? A. Weegy. 61. Generally, the perimeter is defined as the length of the curve around any closed figure. (Use 3. 14 ; r = 12 ; circumference = 2*pi*r ; C = 2 * 3. 16 ; r^2 = 452. Hope this help. 37. What is the circumference of a circle with a diameter of 45 centimeters? A. inches . See the solution steps here. Circumference. 44 in. Solution: A = pi * r^2 r = sqr (A/pi) r = sqr (64/3. We have three approximation formulas to calculate the circumference of the ellipse. Jonathan and his sister Jennifer have a combined age of 48. If Jonathan is twice as old as his sister, how old is JenniferStep 1: Take the formula of circumference and substitute the given values to it. Round your answer to the nearest inch. Learn how to use this formula to find the area of a circle when given the diameter. Diameter in ft cm; 30. The circumference of a circle if the area is 300 square centimeters. C = π·d. . Students will be able to. Units. 3996mi . Plug in 3 for the diameter: pi (3) = 3pi. Circumference = π·d = 3. 3984 D. 28*7= 44 (inches) ; Answer: approximately 44 (inches) Score 1 User: Identify the coefficient of 7xy Weegy: The coefficient of 7xy is 7. User: Find the circumference of a circle that has an area of 452. Arc length is calculated using the relation :. Weegy: The circumference of a circle that has an area of 452. Circumference C = √ 4·π·A = √ 4·π·28. find the circumference of a circle if the are is 300 square meters The circumference of a circle if the area is 300 square centimeters. We know that the circumference of the circle is the total length or perimeter of the circle. 14, thus, the math to calculate the circumference of a circle with a diameter of 42 is: 42 x 3. If the circle has radius r r then the circumference is 2πr 2 π r. so we can rearrange the previous equation to calculate the radius: And now we can find the circumference, by using the formula: Therefore, the correct answer is D. 1416 = 94. The formula to calculate the circumference if you know the diameter is as follows: Circumference = Diameter x π π = Pi = 3. Weegy: Two angles are supplementary. 8. 2. C=2 a=2* *58=26. A circle's. If you know the diameter or radius of a circle, you can work out the circumference. 28 inches. Circumference = π·d = 3. Add this value into the formula C = 2 x π x R C = 2 x π x 20 = 125. 74 cm B. 14 ⋅ 5 C ≈ 15. Circular segment. The circumference of a circle with a diameter of 12 ft is: "37. 78: 359. 5. 38 cm D. 99 ft. Solution: radius = d/2 = 28/2 = 14 Circumference = 2*(3. Here you can find the set of calculators related to circular segment: segment area calculator, arc length calculator, chord length calculator, height and perimeter of circular segment by radius and angle calculator. 14)*14. 66: 4. 1416 * 452. The radius of a circle with an area of 64 square feet is 4. Round your answer to the nearest inch. The formula for the circumference of a circle is pi times the diameter of the circle. Find the circumference of a circle if the area is 300 square centimeters. A. Note: for simplicity, the operations above were rounded to 2 decimal places and π was rounded to 3. meters. The area of the circle is _____ square inches and the circumference is _____ inches. 14 *r^2 , r^2 =58/3. 98 m. Rating. S hare your wor ld. well you have to find the radius you have to divide the diameter by 2 which will get you 15. 22. 16 square meters ( used 3. C = π ⋅ 12in = 38in. results may be rounded. Solution: radius = d/2 = 28/2 = 14 Circumference = 2*(3. weegy.