Question

Find the unknown marked angles in the given figure:

Answer 1

We know that in a triangle if one side of it is produced, then

Exterior angle = sum of its interior opposite angles.

In fig.,

112° + x° = 180° ...............(Linear pair)

⇒ x = 180°− 112° = 68°

and 112° = y + 63° = 49°

Hence x = 68°, y = 49°