Question

A rectangular prism with length 12 m , width 8 m & height 15 m , find its surface area .

Answer 1

Answer: $792\ m^2$

Step-by-step explanation:

Given

The length of the rectangular prism is $l=12\ m$

width of the rectangular prism is $w=8\ m$

height of the rectangular prism is $h=15\ m$

The surface area of the rectangular prism is $2[wl+lh+hw]$

Put the values

$\Rightarrow 2[8\times 12+15\times 12+15\times 8]\\\Rightarrow 2[96+180+120]=2\times 396\\\Rightarrow 792\ m^2$

The surface area of the rectangular prism is $792\ m^2$