Answer:
#4 = 9m
#3 = 50.135 m
Step-by-step explanation:
for number 4 all you have to do is find the area of the whole figure and then subtract the area of that square inside it so 5 x 2 = 10 10 - 1 x 1 = 9
#3 first find the square to be 36 m then find the half circle
diameter = 6 so radius = 3
a = pie x 3^2 so a = 28.27 but its a half circle so 28.27/2 = 14.135 then add 36 to it so 50.135
