Question
Find the unknown marked angles in the given figure:
✓
Answer
We know that in a triangle if one side of it is produced, then
Exterior angle = sum of its interior opposite angles.
In fig., 120° = y° + 60°
⇒ y° = 120°− 60° = 60°
Exterior angle = sum of its interior opposite angles.
In fig., 120° = y° + 60°
⇒ y° = 120°− 60° = 60°
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