3. Triangles
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Use the formula for the area of a rectangle.
25in.^2
We want to find the area of a square. Let's see the figure!
To find the area of the square, we will use the formula for calculating the area of a rectangle. A=l * w Since a square is a rectangle whose length l and width w are equal, we can adapt the formula for a square with side length s. A=l * w ⇒ A=s^2 We have been given that the side length s is 5 inches. Let's substitute this value into the formula to calculate A.
The area of the square is 25 square inches.