Pyramid height

Find the volume of a regular triangular pyramid with edge length a = 12cm and pyramid height h = 20cm.

Correct result:

V =  415.6922 cm3

Solution:

a=12 cm h=20 cm  S1=34 a2=34 122=36 3 cm262.3538 cm2 V=13 S1 h=13 62.3538 20=240 3=415.6922 cm3



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