SOLUTION: what is the surface area of a square pyramid with height 7 if each side of the square base is 10. what is the formula for this problem. thanks

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Question 433054: what is the surface area of a square pyramid with height 7 if each side of the square base is 10. what is the formula for this problem.
thanks
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!


Hi





suface area = area of the base (49units^2) + the area of the 4 trianglular faces

 Need the slant height of the each face = sqrt%287%5E2+%2B+5%5E2%29+

surface area = 49 + 4[(1/2)*10*sqrt(74)] = 49 + 20sqrt(74)