Question

one of the angle of a triangle is 80° and the other 2angles are equal. find the measure of triangle​

Answer 1

Let the  other two equal angles be x

Therefore,

80° + x  +  x =  180° (sum of all the angles of a triangle is 180°)

80° + 2x = 180°

2x  = 180° - 80°

2x  = 100°

x  =  50°

Thus, the other two angles are 50° each.

Hope it will help you...

Answer 2

Answer:

50 degree

Step-by-step explanation:

Let the 2 unknown equal angles be x.

We know that the sum of the angles of a triangle is 180 degrees.

So,80 + x + x =180 degree

80+2x= 180 degree

2x=180-80

2x=100

x=100/2

x=50 degree

Therefore , both the equal angles measure 50 degree.