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: 360 cm² front and back: ? sides: total sa:

Explanation:

Step1: Recall the formula for the area of a rectangle

The area of a rectangle is $A = l\times w$. For the front - back faces of the rectangular prism, the length ($l$) is 12 cm and the height ($w$) is 3 cm.

Step2: Calculate the area of one front - back face

$A_1=12\times3 = 36$ $cm^2$.

Step3: Calculate the area of front and back faces

Since there are 2 such faces, $A = 2\times36=72$ $cm^2$.

Answer:

$72$ $cm^2$