Question

A semicircle has a radius of 8.2

work out the area of the semicircle.
take pi as 3.142 and give your answer to 1 decimal place

Answer 1

105.6 units sq to 1 dp

Explanation:

To find the area of semi- circle

A=1/2πr^2

A=1/2×3.142×8.2×8.2

A=105.63 units sq

To 1 do

A=105.6 units sq to 1 dp