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FInd the surface area of the pyramid.

 

 Feb 15, 2021
 #1
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Three triangles of   base 20  height   12

    plus one triangle   base 20  height 17.3

 

area of a triangle = 1/2  base * height

 

3 *  1/2 ( 20)(12)    + 1/2 (20)(17.3)     =                      yd2

 Feb 15, 2021

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