Question

the area of one square is 81 square centimeters. the area of the three squares is square centimeters.

Explanation:

Step1: Analyze the problem

We know the area of one square is \(81\) square centimeters. We need to find the area of three such squares.

Step2: Use the multiplication formula

The formula for the total area of multiple - same - sized figures is \(A_{total}=n\times A_{one}\), where \(n = 3\) (the number of squares) and \(A_{one}=81\) (the area of one square).
So, \(A_{total}=3\times81\).

$$3\times81=(3\times80)+(3\times1)=240 + 3=243$$

Answer:

\(243\)