Question

one of the angles of a triangle is 120 degree and the other two angles are equal find the measure of each of the equal angles​

Answer 1

Answer:

let the other 2 angle of triangle be X

Angle sum property of triangle=A+B+C=180

120+X+X=180

120+2x=180

2x=180-120

2x=60

X=60÷2

X=30

Therefore, other two angles of triangle is 300

Answer 2

Answer:

let x be 2 equal angles of triangle

sum of angles of triangle 180

x+x+120=180

2x+120=180

2x=180-120

x=60÷2

x=30

2x= 30×2=60