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Find the surface area of the pyramid.

 

 Aug 14, 2020
 #1
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First step is find the area of the base. We see that it is 5 times 5, which is 15. Now, we have to find the combined area of the 4 triangles. This is 2 times 6 times 5, which is 60. Add 25 and 40, and we get 85. Therefore, the answer is a.

 

:)

 Aug 14, 2020

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