Answer:
3
Step-by-step explanation:
All kites have their diagonals meet at a 90-degree angle. That means that KON is a right triangle, so we can use the Pythagorean theorem to find out x:
[tex]5^2 = 4^2 + x^2[/tex]
We subtract [tex]4^2[/tex] from both sides and get:
[tex]25 - 16 = x^2[/tex]
This simplifies to:
[tex]9 = x^2[/tex]
That means x = 3
