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Serggg [28]
2 years ago
9

What is the surface area of a square pyramid with a base perimeter of 60 inches is and a slant height of 13 inches

Mathematics
1 answer:
pentagon [3]2 years ago
3 0

Answer:

615 in^2

Step-by-step explanation:

The base of each triangle is 60/4 = 15 in. and the height of each triangle is 13 in.  One triangle = .5bh = .5(15)(13) = 97.5.  The lateral area = 4(97.5) = 390.  The area of the square base is 15(15) = 225.  The total area = 390 + 225 = 615 sq. in.

(Welcome to Brainly, hope I could help.)

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