3 years ago

What is the surface area of the square pyramid? (Figure is not drawn to scale.)

1 answer:

6 0

Area of the base = 8^2 = 64

area of 1 traingle = 1/2 * 8 * 5.4 = 21.6

there are 4 triangular sides so their area = 4 * 21.6 = 86.4

Total surface area = 64 + 86.4 = 150.4 cm2

D

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