Question

A semi circle has a radius 8.2 cm

Answer 1

Answer:

Step-by-step explanation:

$Area=\frac{1}{2}*\pi *r^{2}\\\\=\frac{1}{2}*3.14*8.2*8.2\\\\=3.14*4.1*8.2$

= 105.57

= 105.6 cm²

Answer 2

Try using the app photo math or something like that it helps me a lot