Question

The area of a circle is 69.56cm2.
Find the length of the radius rounded to 2 DP.

Answer 1

Answer:

radius is 4.71

Step-by-step explanation:

Area of a circle =   π  x   r  2

π  x   r  2 = 69.56

r 2 =  69.56/3.14

r 2 = 3478/157

r 2 = 22.152866242

r = $\sqrt{22.152866}$

r = 4.71