The length of the base of a square pyramid is 9 inches. The slant height is 12 inches. What is the surface area of the pyramid? A) 189 in2

Question

The length of the base of a square pyramid is 9 inches. The slant height is 12 inches. What is the surface area of the pyramid? A) 189 in2 B) 225 in2 C) 297 in2 D) 360 in2

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Rylee 2 weeks 2021-10-07T11:47:34+00:00 1 Answer 0

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    2021-10-07T11:49:03+00:00

    Answer:  C) 297 in2

    Step-by-step explanation:

    Hi, to answer this question we have to apply the next formula:

    Surface area of a square pyramid (S) = 2 (length of the base) slant + length of the base ^2

    S = 2bs + b^2

    Replacing with the values given:

    S = 2 (9) 12 + 9^2

    S = 216 +81 = 297 square inches

    Feel free to ask for more if needed or if you did not understand something.

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