Question

In an isosceles triangle, the base angles are equal. the vertex angle is 40 degree. What are the base angles of the triangle??​

Answer 1

Answer:

let the base angle be x

x+x+40=180

2x=140

x= 70

the base angles are 70 degree

Answer 2

Step-by-step explanation:

in isosceles triangle two angles are same and there is a vertex also

sum of total angle of the triangle=180

180=40+2a

140=2a

or. 2a=140

a=70

hence bases of the isosceles triangle are 70 degree