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28 March, 07:16

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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  1. 28 March, 09:09
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    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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