Metal pyramid

Find the weight of a regular quadrilateral pyramid with a 5 cm length and 6,5 cm body height is made from material with density g/cm3.

Correct result:

m =  433.3 g

Solution:

a=5 cm h=6.5 cm r=8 g/cm3 V=a2⋅ h/3=52⋅ 6.5/3=3256≐54.1667 cm3 m=r⋅ V=8⋅ 54.1667=13003=433.3 g

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