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.
Chat with our AI personalities
154 square inches.
In a circle, the circumference and diameter vary directly. Which of the following equations would allow you to find the diameter of a circle with a circumference of 154 if you know that in a second circle the diameter is 14 when the circumference is 44?
Radius of circle: 44/(2*pi) = 7 cm rounded Area of circle: pi*7^2 = 154 square cm rounded
12.4
diameter = 43.98226/pi = 13.99998817 radius = 13.99998817/2 = 6.999994087 area = pi*6.9999940872 = 153.93778 or about 154 square units