You have to work out the area of each side. The two identical triangles are 6x4=24 because 8/2 is 4. The base is 8x5=40. The back is 6x5=30 and the top is 10x5=50. You then add them all together to get 144 ft squared.
2(4-d+2d)=12
8-2d+4d=12
8+2d=12
2d=4
d=2
Answer:
28
Step-by-step explanation:
(-1)(-7)(4)
(7)(4)
28
