Question

Find the area of the SIM circle round the to the nearest 10th used 3.144 pi do not include units with your answer 12 in

Answer 1

$\text{area of semi circle }=\frac{1}{2}\pi r^2$

r = 12 units

$\begin{gathered} \text{area}=\frac{1}{2}\times3.14\times12^2 \\ \text{area}=\frac{1}{2}\times3.14\times144 \\ \text{area}=\frac{452.16}{2}=226.08 \\ \text{area}=226.1 \end{gathered}$