The area of a circle is the space occupied by the circle in a two-dimensional plane. There are three formulas for calculating the area of a circle.#1:
Given a circle's radius, the formula for calculating its area asserts that:
Pi (π) = 3.14. It is the ratio of circumference to diameter of any circle.#2:
Given a circle's diameter#3:
Given a circle's circumference
A circle has a surface area of 254.34 square yards. Calculate its radius.
A = πr^2
254.34 = 3.14 xr^2
Now, divide both sides by 3.14.
r^2 = 254.34/3.14 = 81
Find the square root of both sides.
r = √81 = 9
r = -9, 9
Since the radius cannot be negative, the correct answer is 9.
Answer: Circle’s radius is 9.