Question

A circle has a diameter of 10 millimeters. What is the area of the circle?

(a) 25 square mm

(b) 25 square mm

(c) 100 square mm

(d) 100 square mm

Answer 1

78.54 square mm

Explanation:

area can be calculated using the formula pi*d^2*1/4

pi*100*1/4

pi*25

78.54

hope it helps :)