Answer:
[tex]y=4[/tex]
Step-by-step explanation:
We have bee a quadrilateral. We are asked to find the value of y if the quadrilateral is a square.
We know that all sides of square has equal measure. To find the value of y, we will equate two sides of our given quadrilateral as:
[tex]3y-9=2y-5[/tex]
Now, let us solve for y using opposite operations.
[tex]3y-2y-9=2y-2y-5[/tex]
[tex]y-9=-5[/tex]
[tex]y-9+9=-5+9[/tex]
[tex]y=4[/tex]
Therefore, the value of y is 4 if the quadrilateral is a square.
