Question

The area of a circle is 78.5 cm2. Find the length of the radius of the circle . Use pi = 3.14

Answer 1

Answer:

r= 5

Step-by-step explanation:

area = $\pi r^{2}$

78.5 = 3.14$r^{2}$

r = $\sqrt{ \frac{78.5}{3.14}}$=5