Question

50
Х
70
Find the value of the
x
exterior angle​

Answer 1

Sum of every angle in a triangle = 180°

Then let's suppose the missing angle be Y

50°+70°+Y = 180°

120°+Y = 180°

Y = 180° - 120°

Y = 60° ............... {1}

Now, there is a property of exterior angle of a triangle

The property says : any angle in the triangle is supplementary to the exterior angle.

x + y = 180°

x + 60° = 180° ......... from {1}

x = 180° - 60°

x = 120°

X = 120°

Answer 2

Answer:

180 - (50+70) 180-120=60°

Step-by-step explanation:

A.S.P = A+ B + C