Question

I could use a little help

Answer 1

Note that:

• Surface area = 2(LW) + 2(LH) + 2(WH)
• LW = 5 x 2
• LH = 5 x 4
• WH = 2 x 4

Substitute the values to obtain the surface area.

• 2(LW) + 2(LH) + 2(WH)
• => 2(5 x 2) + 2(5 x 4) + 2(2 x 4)
• => 2(10) + 2(20) + 2(8)
• => 20 + 40 + 16
• => 76 yd²

The surface area of the prism is 76 yd².