Question

follow the steps to find the surface area of the rectangular prism. what is the area of the front and back? top and bottom: 162 cm² front and back: ? sides: total sa:

Explanation:

Step1: Identify dimensions

The front - back rectangles have dimensions 9 cm (length) and 3 cm (height).

Step2: Calculate area of one rectangle

The area of a rectangle is $A = l\times h$. For the front - back rectangles, $l = 9$ cm and $h=3$ cm, so the area of one rectangle is $A_1=9\times3 = 27$ $cm^{2}$.

Step3: Calculate area of front and back

Since there are 2 (front and back) such rectangles, the total area of the front and back is $A = 2\times A_1=2\times27 = 54$ $cm^{2}$.

Answer:

$54$ $cm^{2}$