SOLUTION: What is the surface area of a 4-sided pyramid with a base of 4 inches and slant height of 5 inches

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Question 961967: What is the surface area of a 4-sided pyramid with a base of 4 inches and slant height of 5 inches
Answer by addingup(3677) About Me  (Show Source):
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On a 4 sided pyramid you have a base and four triangles. First the area of the base,which is the area of the square, b^2:
A(b)= 4^4= 16 This is the area of the base.
The area of the pyramid is:
Area=+b%5E2%2B4%28%28bh%29%2F2%29
Area=+16%2B4%28%284%285%29%29%2F2%29
Area=+16%2B40=+56