Calculation 81401

A regular four-sided pyramid has a volume of 2,160 liters and a base edge length of 12 dm. Calculate the height of the needle (sketch, calculation, answer).

Correct answer:

h =  45 dm

Step-by-step explanation:

a=12 dm V=2160 l dm3=2160 1  dm3=2160 dm3  S1=a2=122=144 dm2  V = 31 S1 h  h=S13 V=1443 2160=45 dm



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