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The square pyramid has base side lengths of 12 centimeters and a slant height of 15 centimeters. What is the total surface area of the pyramid?

 Mar 20, 2020
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The base of the pyramid is a square, so its area is found by:  Area = s2  =  122

 

Each of the sides is a triangle, so its area is found by:  Area  =  ½·b·h  =  ½·12·15

(the slant height of the pyramid is the height of each of its sides)

 

To find the total area, add the area of the base to the area of its 4 sides.

 Mar 20, 2020

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