It could be 12 or 72 depends on how your doing your math
Hello,
Answer D
A Slopes :5/8,12/5==> no product is not -1
B:slopes: -1/2,3 no
C:slopes:2,-1/3 no
D:slopes:-3/2,2/3 Yes product=-1
well, since each bar is parallel to the adjacent one, so if A || B || C || D || E || F, then A || F.
now, for the angles, Check the picture below.
Answer:
D.96ft^3......is the and...hope it helps