# The length of each of the legs of an isosceles triangle is 3 km longer than the base. The perimeter of the triangle is 24 km. How do you find the length of each side?

Nov 7, 2015

6-9-9

#### Explanation:

Let $x$ be the length of the base
$\implies x + 3 =$ length of the legs

$x + x + 3 + x + 3 = 24$

$\implies 3 x + 6 = 24$

$\implies 3 x = 18$

$\implies x = 6$

$\implies x + 3 = 9$