Can someone help me please?

Step-by-step explanation:

The Pythagorean theorem states that in a right triangle where c is the longest side. To solve for x, we plug in the side lengths given as a and c.

Move 2² to the other side to isolate b²

Square root both sides to isolate b

I hope this helps!

false

step-by-step explanation:

the reason i say this is because for a certain length of sides you can pick any two and the length is wither equal or greater than the third side and in this case it's not.

3 + 5 = 8

8 is smaller than 9 which is the third side.

hope this : )