Bracy would like to form a right triangle our of her wooden sticks. She cut the first stick of the length 6 inches and the second stick of the length 4 inches. What should be the length of the third stick to make sure she will be able to form a right triangle?

Pythagorean theorem for right triangle:

a^2 + b^2 = hypotenuse^2

6^2 + 4^2 = ?