Answer:
180 ft³
Step-by-step explanation:
Total volume = base rectangular prism + top triangular prism
v = 6 * 8 * 2 + 1/2 (6 * 8 * (5.5 - 2))
v = 96 + 84 = 180
I think
volume = area of the base × the height
[1/2×(2+2)×6] × 8
= 1/2×24×8
= 24×4
= 96 ft³
Answer: A
(He has the side lengths in the wrong place in the cosine ratio)
x+y=1+3
Answer: 56
4(6+x)
