Find the Combination

Congratulations, you've escaped from the cell thanks to your math skills and Jerry's digging! But now you have to escape the room! Unfortunately, the kid's father is trying to teach him math so he's locked him in the room and given him a math problem to get out. Fortunately, the kid is sleeping in the corner and shouldn't wake up for a few hours so you've got time to solve the problem and escape.

The door to the room has a lock on it that needs three numbers to open it. Taped to the door is a picture of Phineas and these words: "Suppose that the lengths of the three sides of a right triangle are three integers with each one 10 bigger than the last (e.g. 1, 11, 21). Find the lengths of the three sides and you will have the combination!"

Good luck!

What is the smallest side: Just a number

What is the middle side: Just a number

What is the largest side: Just a number

Get out of the room before the kid wakes up!