Question

(05.06 LC)The net of an isosceles triangular prism is shown. What is the surface area, in square units, of the triangular prism?

Answer 1

Answer:

• C. 152 units²

Step-by-step explanation:

Total surface area is the area of the net.

The rectangles have area:

• 8*(5 + 6 + 5) = 128 units²

The triangles have area:

• 2*(1/2*6*4) = 24 units²

Total area is:

• 128 + 24 = 152 units²

Correct choice is C

Answer 2

Answer:

C. 152 square units

Step-by-step explanation:

I'll do the rectangles first because they are the easiest.

8(5)=40. There are 2 of those rectangles, so multiply by 2: 80.

6(8)=48. Add that to 80, you get 128.

The two triangles actually make a rectangle, so to save work, just multiply the base by the height: 6(4). You get 24.

Add them all up, and you get 152.

Hope this helps!