Question

Find the surface area. Explain.

Answer 1

Explanation:

A rectangular prism has six sides so the area is the sum of the side areas.

A=2(xy+xz+yz) where x,y,z are the dimensions, in this case

A=2(2(6)+2(7)+6(7))

A=2(12+14+42)

A=2(68)

A=136 ft^3

Answer 2

SA=136

Explanation:

6*2=12

12*2=24

7*2=14

14*2=28

6*7=42

42*2=84

84+28+24

136