The circumference is found by doubling the radius, and multiplying that number by the value of PI. The formula is Pi x 2r
The area is found by squaring the radius, then multiplying that number by the value of Pi. The formula is Pi x r2 The letter r in both cases represents the radius.
Circumference = 31.4 inches, approx. Area = 78.5 square inches, approx.
A circle with a radius of 8 inches has a circumference of 50.27 inches.
radius=13 area=40.82 circumfrence=8.28025477707
you divide circumference by 2 pi, square that value, and multiply by pi, making the area pi inches squared
To find the radius of a circle, divide the circumference by 2π (approximately 6.28). Therefore, the radius of the circle with a circumference of 232.4 inches is 36.9 inches (232.4 / 6.28).
Circumference = 31.4 inches, approx. Area = 78.5 square inches, approx.
A circle with a radius of 8 inches has a circumference of 50.27 inches.
radius=13 area=40.82 circumfrence=8.28025477707
you divide circumference by 2 pi, square that value, and multiply by pi, making the area pi inches squared
To find the radius of a circle, divide the circumference by 2π (approximately 6.28). Therefore, the radius of the circle with a circumference of 232.4 inches is 36.9 inches (232.4 / 6.28).
the equation to find circumference is C=2*pi*radius so when you have a radius of 18 inches, C=113.097
First we have to find the radius: 2*pi*radius = 18*pi Divide both sides by 2*pi to find the radius: radius = 9 inches Area of a circle = pi*radius2 Area = pi*92 = 81pi or 254.4690049 square inches
Use: 2*pi*radius = circumference
First we have to find the radius: pi*radius2 = 120 sq ins Divide both sides by pi and then square root both sides: radius = 6.180387232 inches circumference = 2*pi*radius circumference = 38.83251825 or 39 inches to the nearest inch.
Circumference = 2*pi*radius or pi*diameter Circumference = 36pi inches
diameter = circumference/pi = 37/3.1416 = 11.8 inches; radius = 1/2 diameter = 5.9 inches; radius = circumference/(2pi) = 5.9 inches = 37/6.2832 = 5.9 inches
Circumference = 2*pi*radius Area = pi*radius2