First you got to subtract 100 from 50 than you have to divide 50 by 8 and then multiply by 3
It would be option 4) 2 because the line is perpendicular hope this helps!!
Volume of a Square Pyramid: 1/3 x length x width x height
Length = 2
Width = 2
Height = 3
Volume = 1/3 x 2 x 2 x 3
Volume = 1/3 x 4 x 3
Volume = 1/3 x 12
Volume = 4
Volume = 4 cm^3
Hope this helps!