Question

Find the surface area of each figure. Round your answers to the nearest hundredth, if necessary.

Answer 1

Surface area of the given figure = 246.6 ft²

Step-by-step explanation:

Surface Area = Lateral Surface Area + Area of Base

Now,

Base is a square

Area of Square = (9)² = 81

Now,

Lateral surface area = (1÷2)×(4×9)(9.2)

= (1÷2)×(36)(9.2)

= (1÷2)×(331.2)

= 165.6

So,

Surface Area = 165.6 + 81

= 246.6

∴ we get

Surface area of the given figure = 246.6 ft²