Question

1. What is the surface area of the rightrectangular prism shown in the figure?5m 7 m9 m

Answer 1

The area is 286 square meters

Explanation:

We have that the formula to calculate the surface area in a rectangular prism is the following:

`A=2\cdot l\cdot w+2\cdot l\cdot h+2\cdot h\cdot w`

Where l is the length, w is the width and h is the height

l = 9 m

w = 7 m

h = 5 m

Replacing:

`\begin{gathered} A=2\cdot9\cdot7+2\cdot9\cdot5+2\cdot5\cdot7 \\ A=126+90+70 \\ A=286 \end{gathered}`