Find the surface area of the pyramid. Round to the nearest tenth.

asked Sep 14, 2023 194k views

2 votes

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1 vote

Answer:

279

Explanation:

The area of the square base is 9² = 81.

The area of each triangular face is (1/2)(9)(11)=99/2.

So, the total surface area is 4(99/2)+81=279

Mpcabd answered Sep 19, 2023

3.8k points

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