Question

Will give brainliest

Answer 1

Answer:

384

Step-by-step explanation:

Given,

Dimensions of the rectangular prism = 9ft, 12ft and 4ft

Therefore,

Surface area of the rectangular prism

= 2( lb + bh + lh)

$= 2(12 \times 9 + 9 \times 4 + 12 \times 4) {ft}^{2}$

$= 2(108 + 36 + 48) {ft}^{2}$

$= 2 \times 192 {ft}^{2}$

$= 384 {ft}^{2}$

Hence,

Surface area of rectangular prism is 384 sq. ft (Ans)