Question

Find the area of a circle with a radius of 4.2 then use 3.14 and round your answer to the nearest hundredth

Answer 1

A ≈ 55.39 units²

Explanation:

the area (A) of a circle is calculated as

A = πr² ( r is the radius )

here r = 4.2 , then

A = 3.14 × 4.2²

= 3.14 × 17.64

= 55.3896

≈ 55.39 units² ( to the nearest hundredth )