Calculate Rectangle Area: 3² cm Width × 1.5 cm Length

Question

The width of a rectangle is equal to $3^2$ cm and its length is $1.5~$ cm.

Calculate the area of the rectangle.

00:00 Calculate the rectangle's area

00:03 We'll use the formula for calculating rectangle area (side times side)

00:07 We'll substitute appropriate values according to the given data and solve for the area

00:20 Let's break down 1.5 into 1 and a half

00:23 Let's properly expand the brackets - multiply each factor

00:32 Calculate each multiplication and then sum up

00:40 And this is the solution to the problem

Let's begin by solving the first exercise:

$3^2=9$

Now let's multiply the length by the width in order to find the area of the rectangle:

$9\times1.5=13.5$

13.5