Question

Can anyone help me with #3 on this please

Answer 1

Answer:

So I can't actually do this at the moment but I'll try to explain what to do

first find the area of the rectangle (12x16)

then, the confusing part, pretend the semicircle is a full circle and find the area and divide by 2

add the two up and put $cm^{2}$ and that should be it