Question

If one leg of a right triangle is 20 inches long and the other leg is 21 inches.

Determine the length of the hypotenuse

Answer 1

29 inches

Explanation:

Using Pythagoras' identity in the right triangle.

The square on the hypotenuse is equal to the sum of the squares on the other 2 sides, that is

h² = 20² + 21² ( h is the hypotenuse )

= 400 + 441 = 841 ( take the square root of both sides )

h =
`√(841)` = 29