Question

A rectangular prism is 4 meters long, 5 meters wide, and has a height of 7 meters. What is its surface area?

140 m 2
166 m 2
84 m 2
70 m 2

Answer 1

166 m^2

Explanation:

Answer 2

The surface area of rectangular prism is 166 m².

Explanation:

Given that,

length l= 4 m

Width b= 5 m

Height h=7 m

Using the formula of surface area of rectangular prism

`A= 2(bh+lb+lh)`

We substitute the value into formula

`A= 2(5*7+4*5+4*7)`

`A= 2(35+20+28)`

`A=2*83`

`A= 166 m^2`

Hence, The surface area of rectangular prism is 166 m².