Question

16.In an isosceles triangle, the base angles are equal, and the vertex angle is 80 degrees.

Find the measure of the base angles.​

Answer 1

Answer:

Base angles is 50°

Step-by-step explanation:

In an isosceles triangle the base angles are equal (i.e. Base angle 1 =base angle 2)

And vertex angle is 80

And sum of angles of triangle is 180

Vertex angle + base angle 1 + base angle 2 = 180

80+2(base angle 1) = 180

Base angle 1 = 100/2 = 50

Hence base angle 2 = 50

Answer 2

Answer:

50°

Step-by-step explanation:

Sum of all angles of a triangle=180°

Vertex angle=80°

Let,the base angles be=2x

Equation formed= 2x+80=180

2x=180-80=100

x=100/2=50°

Therefore each base angle= 50°