Question

A semicircular flower bed has a diameter of 3 metres. What is the area of the flower bed?

Answer 1

you would divide 3 by 2 than you would square 1.5 and multiply it by 3.14 7.065

Answer 2

The area of circle is

`A_{\text{circle}}=\pi r^2.`

Then the area of semicircular region is

`A_{\text{semicircular region}}=(1)/(2) \pi r^2.`

If r=3 m, you have

`A_{\text{semicircular region}}=(1)/(2) \pi \cdot 3^2=(9\pi)/(2)=4.5\pi \approx 14.13` sq. m.

Answer:
`A_{\text{semicircular region}}=4.5\pi \approx 14.13` sq. m.