LESSON 20-1 PRACTICE
10. A square has an area of 72 square inches. What is its side length s? Give
the exact answer using simplified radicals.
strita
Allt
A= 72 in.2 s

Respuesta :

Answer:

The side lengths are [tex]6\sqrt{2} [/tex] inches long.

Step-by-step explanation:

1. We know the formula to calculate the area of a square is the [tex]side length^{2} [/tex].

2. If the area is 72 square inches, we can create an equation to solve for the side lengths.

3. 72 = [tex]side length^{2} [/tex]

4. Solve:

[tex]\sqrt{72} = \sqrt{sidelength^{2} } [/tex]            (Take the square root of both sides)

[tex]\sqrt{72} = side length[/tex]                 (Simplify)

[tex]6\sqrt{2} = side length[/tex]                 (Convert [tex]\sqrt{72} [/tex] into simplified radicals)

5.  This gives us the answers: Each side length is [tex]6\sqrt{2}[/tex] inches long.

Hope this helped!