Radius: 29/(2*3.14) = 4.618 rounded to 3 decimal places
Area: 3.14*4.618 squared = 72.889 square m to 3 decimal places
Tells you the answer is 2*sqrt(314*pi) inches, which is approximately 62.82 inches Seriously though. Use metric units in maths it makes everything just work!
Divide the circumference by (2 x pi) to get the radius. Then use the formula for the area of the circle.
If you mean 3.14 for pi then the circumference is: 7*3.14 = 21.98 cm
The area of a circle with radius r is pi*r*r and its circumference is 2*pi*r Use the first to find r and then use that value of r in the second to find the circumference.
if it is the radius you can find area or circumference
Tells you the answer is 2*sqrt(314*pi) inches, which is approximately 62.82 inches Seriously though. Use metric units in maths it makes everything just work!
Divide the circumference by (2 x pi) to get the radius. Then use the formula for the area of the circle.
If you mean 3.14 for pi then the circumference is: 7*3.14 = 21.98 cm
The circumference and area of a circle, with radius r is: circumference = 2*pi*r and area = pi*r2 Use the first to calculate r and then the second to calculate the area.
The area of a circle with a circumference of 9.42 inches is: 7.06 square inches.
Suggestion: Divide the circumference by (2 x pi) to get the radius. Then use the standard formula for the area of a circle.
The area of a circle with radius r is pi*r*r and its circumference is 2*pi*r Use the first to find r and then use that value of r in the second to find the circumference.
if it is the radius you can find area or circumference
They both use pi:- circumference = 2*pi*radius or diameter*pi area = pi*radius2
Use the standard formula for the area of a circle to find out the circle's radius. Then multiply that by 2 x pi, to get the circumference.
you use pi to calculate the area or circumference of a circle
To find the area of a circle knowing only the circumference, you can use the formula A = (C^2) / (4π), where A is the area and C is the circumference. Square the circumference, then divide it by 4π to get the area.