Question

One of the legs of a right triangle measures 4 cm and it's hypotenuse measures 5 cm. Find the measure of the other leg. If necessary, round to the nearest tenth.

Answer 1

Answer: 8.9

Explanation:

Answer 2

Measure of the other side of a right triangle
`=3\,\,cm`

Explanation:

Given:

Length of one leg of a right triangle
`=4\,\,cm`

Length of the hypotenuse
`=5\,,\cm`

To find: measure of the other side of a right triangle

Solution:

Let
`x` denotes the measure of the other side of a right triangle.

According to Pythagoras theorem,

square of hypotenuse is equal to sum of squares of other two sides.

`5^2=4^2+x^2\\25=16+x^2\\x^2=25-16\\x^2=9\\x=3\,\,cm`

So,

Measure of the other side of a right triangle
`=3\,\,cm`