Answer:
B=9*5=45m²
P=4+5+3=12m
H=9m
Now
S.A=P*H+2B=12*9+2*45=198m²
V=BH=45*9=405m³
here
B:base area of rectangle
P=perimeter of triangle
H=length of rectangle
S.A=surface area
V=Volume
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