Answer:
228
Step-by-step explanation:
Surface area is the sum of all the faces. Let's calculate the area of the bases first:
A(triangle) = 1/2 b*h = 1/2 6*10 = 30
A(right rectangle) = l*w = 8*7 = 56
A(bottom rectangle) = l*w = 6*7 = 42
A(left rectangle) = l*w = 10*7 = 70
So the total is 30+30+56+42+70 = 228 ft squared
