length = 12

width = 14

height = 10

perimeter = 2 * ( 12 + 14 )

perimeter = 52

**So the perimeter is 52**lateral surface area = 52 * 10

lateral surface area = 520

**So the lateral surface area is 520**
## Explanation :

Lateral surface area of the rectangular prism means that the area of the side portion. For example it is useful for the calculation like how much it costs to paint the side portion etc. Inorder to find the lateral surface area we have to find the permeter first. Basic formula is available, so it is easy to substitute in the formula to find perimeter. And then use the perimter we found to get the final result