I worked it out and the Sa top and bottom (which are trapezium+ is 38.94 mm^2For #2, you are misinterpreting the shape of the top. Note which sides are marked as perpendicular; the perpendicular height is 5.9 mm.
View attachment 28808
Did you also correct the area of the left side? It is not the same as the right side! You assumed that the top is an isosceles trapezoid, which it is not.Tha
I worked it out and the Sa top and bottom (which are trapezium+ is 38.94 mm^2
When I added it all up it gave me 480.4 mm^2. The answer says is 512.0 mm^2
I still didn’t get 512.0 mm^2Did you also correct the area of the left side? It is not the same as the right side! You assumed that the top is an isosceles trapezoid, which it is not.
Please show your work for LHS, top, and bottom. How do you get the top and bottom different? We may still be interpreting something differently, but I do get their answer.I still didn’t get 512.0 mm^2
SA front = 64.4
SA back = 148.1
SA rhs = 95
SA lhs = 163.8 (not too sure if this is correct)
SA top = 38.9
SA bottom = 32.1
total = 542.3
the answer is 512.0 (how??)
I worked it out in the end.Please show your work for LHS, top, and bottom. How do you get the top and bottom different? We may still be interpreting something differently, but I do get their answer.