2 years ago

The total surface area of this triangular pyramid is_____? help asap

Mathematics

1 answer:

Inessa05 [86]2 years ago

3 0

Answer: 208 in^2

Step-by-step explanation:

find the surface area of the square base

8(8)=64

find the surface area of the 4 triangular lateral faces

SA=4(bh÷2)

4(8 x 9 ÷2)

4(36)=144

add the surface area of the square base and lateral faces

64+144=208

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