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jasenka [17]
3 years ago
8

I don’t understand can you please explain how you got this answer my answer keep being low than these

Mathematics
1 answer:
disa [49]3 years ago
3 0

Answer:

189

Step-by-step explanation:

The pyramid has four triangular faces and a square base.

The area of a triangle is half its base times its height.  The base of each triangle is 7, and the height of each triangle is 10.  So the area of each triangle is A = ½ (7) (10) = 35.

The area of a square is the side length squared.  The side of the square is 7.  So the area of the square is A = (7)² = 49.

The total surface area is:

A = 4(35) + 49

A = 189

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No more than in inequality = (≤)

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