Question

Find the surface area of the regular pyramid. Write your answer as a decimal. (solved)

Answer 1

Answer:

The total surface area is 145.12 sq.m.

Step-by-step explanation:

We are supposed to find the surface area of given figure

Length of rectangular part = 15 m

Breadth of rectangular part = 8 m

Area of rectangular part =$Length \times Breadth = 15 \times 8 = 120 sq.m.$

Diameter of semi circle = 8 m

Radius of semicircle = $\frac{8}{2}=4 m$

Area of semicircle = $\frac{\pi r^2 }{2}=\frac{3.14 \times 4^2}{2}=25.12 sq.m.$

Total surface area = 120+25.12=145.12 sq.m.

Hence The total surface area is 145.12 sq.m.