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podryga [215]
3 years ago
7

What is the total surface area of the square pyramid?

Mathematics
2 answers:
Sedaia [141]3 years ago
7 0

Answer:

144

Step-by-step explanation:

Hatshy [7]3 years ago
6 0

Answer:

144 in^2

Step-by-step explanation:

There are four triangular sides to this square pyramid.  According to the area-of-a-triangle formula, A = (1/2)(b)(h), which here is A = (1/2)(8 in)(5 in) = 20 in^2.

Thus, the total lateral (side) area is 4(20 in^2) = 80 in^2.

The area of the bottom is (8 in)^2, or 64 in^2.

Thus, the total surface area is 80 in^2 + 64 in^2, or 144 in^2.

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