Question
It is given that ∠XYZ = 64° and XY is produced to point P. Draw a figure from the given information. If ray YQ bisects ∠ZYP, find ∠XYQ and reflex ∠QYP.
Solution
∵ Ray YZ stands on line PX
∴ ∠XYZ+ ∠ZYP = 180°
| Linear Pair Axiom
⇒ 64° + ∠ZYP = 180°
| ∵ ∠XYZ = 64° (Given)
⇒ ∠ZYP = 180° - 64°
⇒ ∠ZYP = 116° ...(1) Ray YQ bisects
| Using (1)
= 580 ...(2)
The sum of all the angles round apoint is equal to 3600
Again,
= 640 + 580 (Given) and
[ From (2) ]
= 1220.