Question

Pls help, I don’t understand how to do this

Answer 1

5

Explanation:

Answer 2

5 parts are shaded and 4 parts are white so:

There are 9 parts all together.

We can then form ratio's of the white areas and the shaded areas:

White Area Ratio =

`(4)/(9)`

Shaded Area Ratio =

`(5)/(9)`

Let the area of sqaure be equated to x, which means let the entire area of the square equal to x:

x = Area of whole square

Now we can form an equation :

`(5)/(9) x = 165`

So now we just need to solve for x:

`x = (165)/( (5)/(9) )`

`x = 297`

The area of the square is:

`297 {cm}^(2)`