Question

Find the surface area of this composite solid.

Answer 1

The correct is A to this question

Answer 2

B

Explanation:

area of top on triangle=1/2×4×3=6m²

area of four top triangles=6×4=24 m²

area of bottom square=4×4=16 m²

area of four side rectangles=4×(4×5)=80 m²

Total area= 24+16+80=120m²