Question

In an isosceles triangle, the sum of two equal angles is 80 degree more than the third angle. find the third angle ​

Answer 1

Answer:

50 degrees

Step-by-step explanation:

a+b+c=180 degrees......... 1

Given

a+b=c+80.................2

subtract equation 1 by 2

a+b+c=180

-(a+b-c) =80

2c=100

C=50degrees.

Answer 2

Step-by-step explanation:

let the third side be x

sum of two equal angle is x+80

as we know that sum of all angle of the triangle is 180 degree

so,

(x+80)+x =180

x+80+x= 180

2x+80=180

2x=180-80

2x=100

x=100/2

x =50

so the third angle is 50degree.

I HOPE THIS WILL HELP YOU