Question

Question #9a44d

Answer 1

Sides are `18.03cm` long

Explanation:

In an isosceles triangle, the perpendicular bisector of the base gives the height and is also a line of symmetry.

This means that we can use Pythagoras's Theorem to find the length of the equal sides by finding the hypotenuse.

`h^2 = 15^2+10^3`

`h^2 = 225+100`

`h^2 = 325`

`h = sqrt325`

`h = 18.03`