Question

elan is painting the outside of a rectangular barn door. it is 80 inches high and 60 inches wide. what is the area of the outside of the door? a 4,800 in² b 2,800 in² c 1,400 in² d 280 in²

Explanation:

Step1: Recall rectangle area formula

The area \( A \) of a rectangle is given by \( A = \text{length} \times \text{width} \). Here, the height (which can be considered as length) is 80 inches and the width is 60 inches.

Step2: Substitute values into formula

Substitute length \( = 80 \) in and width \( = 60 \) in into the formula: \( A = 80 \times 60 \).

Step3: Calculate the product

\( 80 \times 60 = 4800 \) square inches.

Answer:

A. \( 4,800 \text{ in}^2 \)