Find the missing height and side length of the regular pyramid.
S = 864in2

Mark M.
answered 04/29/19
Mathematics Teacher - NCLB Highly Qualified
x2 + 4(0.5x)(15) = 864
x2 + 30x = 864
x2 + 30x - 864 = 0
(x + 18)(x - 48) = 0
x = 48
Can you use Pythagoras to determine h and answer?
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