Please help will give brainliest

Answer:
100.53+80 = 180.53(rounded)
32pi+80 (not rounded)
Step-by-step explanation:
Triangle area = 1/2 b*h
Semi circle = (pi r^2)/2 - radius= diameter/2
h= 10 m
b=16 m
1/2*16*10
8*10
80 m
Semi circle
(pi8^2)/2
32pi
100.53 (rounded)
Add triangle +semicircle.
100.53+80 = 180.53(rounded)
32pi+80 (not rounded)