Question

follow the steps to find the surface area of the rectangular prism. what is the area of the sides? top and bottom: 162 cm² front and back: 54 cm² sides: ? 9 cm 9 cm 3 cm

Explanation:

Step1: Identify side - face dimensions

The side - faces of the rectangular prism have dimensions 3 cm (height) and 9 cm (width).

Step2: Calculate area of one side - face

The area of a rectangle is $A = lw$. For a side - face, $l = 9$ cm and $w = 3$ cm, so the area of one side - face is $A_1=9\times3 = 27$ $cm^2$.

Step3: Calculate total area of both side - faces

Since there are 2 side - faces in a rectangular prism, the total area of the side - faces is $A = 2\times27=54$ $cm^2$.

Answer:

$54$ $cm^2$