Question

The diameter of a circle is 28 millimeters. What is the circle's area?
d=28 mm
Round your answer to the nearest hundredth.
square millimeters

Answer 1

Radius = 28/2 = 14 mm.
Area = πr^2 = π(14^2) = 196π ≈ 196 × 3.14159265 = 615.75216...

Rounded to the nearest hundredth: 615.75 square millimeters.