I dont have the * exact answer * but i got 11 or 12. Hope this helps :))

= 20 inches
In a rectangle, there are 2 similar length measurements & 2 similar width measurements
Hello there!
The Pythagorean Theorem is:
a² + b² = c²
We have b = 48 and c = 50
Remember: The hypotenuse is always longer.
a² + 48² = 50²
a² + 2304 = 2500
a² = 2500 - 2304
a² = 196
a = √196
a = 14
The missing length is 14.
Let me know if you have any questions. As always, it is my pleasure to help students like you!