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Find the surface area of a square pyramid with a slant height of 15 and a base side measure of 20

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i need to know how to find the surface area please help!

surface-area-of-a-square-pyramid

asked Mar 4, 2014 in GEOMETRY by rockstar Apprentice

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1 Answer

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Surface area of squre pyramid(SA) = s^2+2*s*l

s = base side = 20

l = slant height = 15

SA = (20)^2+2*20*15

= 400+600

= 1000

answered Mar 4, 2014 by david Expert

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