Question

Q5 A rectangular pyramid is mounted on a rectangular prism as shown in the figure. Find

the surface area of the solid formed.
10 ft
Aft
3 ft
4ft

Answer 1

Answer: 164 ft^2

Explanation:

l=length. w=width. h=height. SA=surface area

SA=2(l*w)+2(l*h)+2(w*h)

SA=2(10*3)+2(10*4)+2(3*4)

SA=2(30)+2(40)+2(12)

SA=60+80+24

SA=140+24

SA=164 ft^2