Question

In an isosceles triangle, the vertex angle is twice either base angle. Find the base angles​

Answer 1

Answer:

Let, base angle be "b".

So, vertex angle= 2b

Sum of angles in a triangle= 180 degrees

There are 2 base angles and 1 vertex angle.

So,

2b+b+b = 180

4b= 180

b=180/4

b=45 degrees.

Therefore,

b=45 degrees

Answer 2

Answer:

Step-by-step explanation:

Let, base angle be "b".

So,

vertex angle= 2b

Sum of angles in a triangle= 180 degrees

There are 2 base angles and 1 vertex angle.

So,

2b+b+b = 180

4b= 180

b=180/4$\frac{180}{4}$

b=45 degrees.

Therefore,  

ans :-  → b=45 degrees