Question

Need help with question 15 I did the work for it but the answer was wrong somehow it didn't work out question is on the photo

Answer 1

336, (B)

Explanation:

To find the surface area, find the area of each square and triangle

10x12 + 2(6x8)/2 + 12x6 + 8x12

This would then be,

120 + 48 + 72 + 96

Surface area = 336, (B)

You made a mistake on step 2.

When finding the area of triangle, you have to divide by 2.

Hope this helps!