Question

What is the length of the hypotenuse of a right triangle if the two other sides are of lengths 3 and 10?

Answer 1

`sqrt109`

Explanation:

From Pythagoras Theorem, the square of the hypotenuse is equal tot he sum of the squares of the other 2 sides.
`x^2+y^2=r^2`.

`therefore r=sqrt(x^2+y^2)`

`=sqrt(3^2+10^2`

`=sqrt109`