Question

In the length of each leg of an isosceles triangle is 13 and the base is 24, the length of the altitude to the base is

Answer 1

altitude = 5

Explanation:

Look at the picture.

Use the Pythagorean theorem:

`a^2+12^2=13^2`

`a^2+144=169` subtract 144 from both sides

`a^2=25\to a=√(25)\\\\a=5`