What is the length of the hypotenuse, x, if (20, 21, x) is a pythagorean triple?

Answer this question, only if you know the answer. 30 points and brainliest!

Drag the tiles to the correct boxes to complete the pairs. not all tiles will be used. the heights of the girls in an advanced swimming course are 55, 60, 59, 52, 65, 66, 62, and 65 inches. match the measures of this data with their values.

If i have a 24 in loaf of bread and i cut it into two pieces one 9 in how long was the other