Question

A triangle has sides with lengths of 39 miles, 80 miles, and 89 miles. Is it a right triangle?

Answer 1

Yes, it is a right triangle

Explanation:

For a triangle to be a right triangle, sum of the squares of two sides must be equal to the square of the third side. In the present case, `39^2=1521`
`80^2=6400` and
`89^2= 7921`

It is thus seen the `39^2 +80^2= 89^2`

Hence it is a right triangle