Using the Pythagorean theorem: 20²+21² = 400+441 = 841 = 29²
So the hypotenuse is of length 29
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The lengths of the legs of a right triangle are 15 cm and 20 cm. What is the length of the hypotenuse?
The hypotenuse of a right triangle with legs 12 inches and 16 inches is: 20 inches.
20
(15)2 + (20)2 = 225 + 400 = 625 Hypotenuse = sqrt(625) = 25
If its a right angle triangle then the hypotenuse using Pythagoras 2 times the square root of 149