Question

One of the angle of the triangle is 130°and the other two angles are equal .What is the measure of each of these equal angle?

Answer 1

angel a+angel b+angel c=180(angel sum property of triangle).
given that,a=130&b=c
let us assume b=X
then,
a+b+c=180
130+X+X =180
2x= 180-130
X=50/2
X=25
X=b=c=25

Answer 2

Sum of angles of a triangle = 180°

Let equal angle = x

130° + x + x = 180

2x = 180 - 130 = 50°

x = 25

Measure of each equal angle = 25°

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