Answer: For the first pic, c= 17.20. For the second pic, x= 50.
Explanation:
We need to use the Pythagorean theorem for these problems. A^2 + B^2= C^2
For the square (first picture).
It doesn't matter what values we put for A and B, as long as the hypotenuse (denoted in the picture as c) is C.
Let A= 10, and B=14
Plug the values into the equation!

Simplify:




17.20= C
Therefore, c= 17.20
PICTURE #2:
Complete the problem exactly how you did the first one.
Let A=48, and B=14
Plug those values into the pythagorean theorem...

Simplify:

2500 = C^2


50= C
SO, 50 = x
Hope this all helps!!