Question

In an isosceles triangle the vertex is equal to 40(degree) find the measure of all the angles of triangle ​

Answer 1

Step-by-step explanation:

Let the base angles be ′x′

Therefore, 

x+x+40∘=180∘                                  [Given]

2x=180∘−40∘

2x=140∘

x=70∘

Hence, 

The base angles of the triangle are 70∘,70∘.