Calculate Rectangle Area: 4-Squared Width × 5cm Length Problem

Question

The width of a rectangle is equal to $4^2$ cm and its length is $5$ 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

00:10 Let's calculate 4 squared

00:19 Break down 16 into 10 plus 6

00:22 Open parentheses properly - multiply each factor

00:33 Calculate each multiplication separately and then sum

00:37 And this is the solution to the problem

We use the formula to calculate a rectangle: length times width:

According to the existing data:

$4^2\times5^=S$

$S=16\times5$

$S=80$