It is given that Z XYZ = 64° and XY is produced
to point P. Draw a figure from the given
information. If ray YQ bisects Z ZYP, find Z XYQ
and reflex ZQYP.
Answers
XYP is a straight line
∠xyz + ∠XYP = 180°
∠xyp = 180 -∠xyz
∠xyp = 180° - 64°
∠xyp = 116 °
Since , YQ bisects ∠Xyp =
∠ xyq = ∠Qyp = 1/2 ∠xyp
=1/2 ×116
= 58°
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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.
Answer :-
i.e : XYP is a straight line.
∴ ∠XYZ + ∠ZYQ + ∠QYP = 180°
⇒ 64° + ∠ZYQ + ∠QYP = 180°
[∵ ∠XYZ = 64° (given)]
⇒ 64° + 2∠QYP = 180°
[YQ bisects ∠ZYP so, ∠QYP = ∠ZYQ]
⇒ 2∠QYP = 180° – 64° = 116°
⇒ ∠QYP = 116°/2 = 58°
∴ Reflex ∠QYP = 360° – 58° = 302°
Since ∠XYQ = ∠XYZ + ∠ZYQ
⇒ ∠XYQ = 64° + ∠QYP [∵∠XYZ = 64°(Given) and ∠ZYQ = ∠QYP]
⇒ ∠XYQ = 64° + 58° = 122° [∠QYP = 58°]
Thus, ∠XYQ = 122° and reflex ∠QYP = 302°.
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