Answer:
8 x 4 x 12 = 384
Step-by-step explanation:
2 triangular faces
1/2bh
10x15=150
2x150= 300
‘back’ face
7x20=140
‘front’ face
7x25= 175
‘bottom’ face
7x15= 105
total: 585m^2
step 1. x + 4.75 - 6.55 = 5.43
step 2. looks like b is the only answer.
