Find the surface area of the regular pyramid.

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Mathematics

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Explanation & Answer

slant height = sqrt(169 - 16)  = sqrt153

S of the lateral surface = ((3*8)/2)*sqrt153 = 12sqrt153

p=(8+8+8)/2=12

S of the base = sqrt(12*(12-8)*(12-8)*(12-8))=16sqrt(3)

S=3*S of the lateral surface +S of the base=36sqrt153 + 16sqrt(3)=108sqrt(17) + 16sqrt(3)


Anonymous
Awesome! Perfect study aid.

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