# 4s pyramid

Regular tetrahedral pyramid has a base edge a=17 and collaterally edge length b=32.

What is its height?

Correct result:

v =  29.66

#### Solution:

$u_1 = \sqrt2 a \ \\ v = \sqrt{ b^2 -\dfrac{ u_1^2}{4}} = \sqrt{ b^2 -\dfrac{ a^2}{2}} = \sqrt{ 32^2 -\dfrac{ 17^2}{2}} = 29.66$

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