# In a triangle length of two larger sides are 10 cm and 9 cm respectively . If the angles of the triangle are in A.P then the length of the third side can be?

##### 1 Answer

Sep 21, 2017

#### Explanation:

We will follow the **Usual Notation** for a

Given that, the angles of a triangle are in A.P.

So, we suppose that, in

But,

Since,

Applying the **Sine-Rule** for