# How do you find the missing length of an isosceles triangle given Base = 8 Angle = 30?

##### 1 Answer

Jun 16, 2015

The length of the non-base sides is

#### Explanation:

(see diagram)

If the isosceles triangle is divided into two right-angled triangles, each resulting right-angled triangle has sides with well known proportions,

where the

the

Since "half isosceles base"

missing length