21/75 Marks Work out the area of a semicircle with radius 3 cm. Give your answer in terms of . 3 cm Need in the terms of \pi ​

Question

21/75 Marks Work out the area of a semicircle with radius 3 cm. Give your answer in terms of . 3 cm

Need in the terms of

`\pi`
​

Answer 1

`4.5\pi`

Explanation:

The area of the entire circle is

`\pi(3^2)=9\pi`

This means the area of half the circle is

`4.5\pi`