Question

One of the legs of a right triangle measures 4 cm and its hypotenuse measures 20 cm. Find the measure of the other leg. If necessary, round to the nearest tenth.​

Answer 1

19.6

Explanation:

Use
`a^2+b^2=c^2` (where a and b are the legs and c is the hypotenuse)

`a^2+4^2=20^2`

`a^2+16=400`

`a^2=384`

`a=√(384)=8√(6) =19.6`