Question

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

Answer 1

The total surface area is 145.12 sq.m.

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 * Breadth = 15 * 8 = 120 sq.m.`

Diameter of semi circle = 8 m

Radius of semicircle =
`(8)/(2)=4 m`

Area of semicircle =
`(\pi r^2 )/(2)=(3.14 * 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.