Question

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

Explanation:

Step1: Recall area formula for rectangle

The area of a rectangle is $A = l\times w$. For the top - and bottom of the rectangular prism, the length $l = 9$ cm and the width $w = 9$ cm.

Step2: Calculate area of one face

$A_1=9\times9 = 81$ $cm^2$.

Step3: Calculate area of top and bottom

Since there are 2 faces (top and bottom), $A = 2\times A_1=2\times81 = 162$ $cm^2$.

Answer:

$162$ $cm^2$