This question was uploaded on 19/11/21 on social media accounts.
Solution:
Steps:
Draw a symmetric triangle (Mirror image of the triangle) having sides blue, purple, and orange.
Observe, 40+70+70 = 180, that means line is straight.
Purple will be an equilateral triangle. (Two sides are the same and the angle between them is 60)
By this, green will be angle bisector and we will get:
2x = 20
x = 10
