If the area of a circle is 78.5 cm squared, what is the radius of the circle? Use 3.14
The formula for the area of a circle is A = πr^2, where π is approximately 3.14 and r is the radius of the circle.
Given that the area of the circle is 78.5 cm squared, we can set up the equation as follows:
78.5 = 3.14 * r^2
To solve for the radius, we first divide by 3.14 on both sides:
r^2 = 78.5 / 3.14
r^2 = 25
Taking the square root of both sides, we get:
r = √25
r = 5
Therefore, the radius of the circle is 5 cm.