Answer:
538,3m^2
Step-by-step explanation:
first of all, I find it really disturbing to use 3,14 as pi but I'll try my best.
1) Determine the area of the rectangle;
h.b= area of a rectangle
so here
15m.30m = 450 m^2
the area of the circle = pi.r^2
so here
7,5m^2.3,14 = 176,625m^2
but we only need the half of it so 176,625m^2/2 = 88,3125m^2 ~ 88,3m^2
then we must sum them all up;
88,3m^2 + 450m^2 = 538,3m^2
