Roof 8

How many liters of air are under the roof of tower which has the shape of a regular six-sided pyramid with a 3,6-meter-long bottom edge and a 2,5-meter height? Calculate the supporting columns occupy about 7% of the volume under the roof.

Correct result:

V =  26095 l

Solution:

a=3.6 10=36 h=2.5 10=25 S1=3/4 a2=3/4 362=324 3561.1845 S=6 S1=6 561.1845=1944 33367.1068 V1=S h/3=3367.1068 25/328059.2231 V=(17/100) V1=(17/100) 28059.2231=26095 l



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