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In the figurer OCs the bisector of LAOB and OD is the
appoute to OC show that LADD BOD
V Prove that the angle between the intemal bisector of one base
angle and the external bisector of the other is equal to one half
of the vertical angle
13. In the figure given below LO > LR, PA is the bisector of ZQPR
and PM LOR. Prove that ZAPM - (20-2R)
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Q2
In the given figure, ray OC is the bisector of ∠AOB and OD is the ray opposite OC. Show that ∠AOD=∠BOD
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Q3
In the figure, AB=AC and OB and OC are angle bisectors of ∠B and ∠C. Prove that ∠BOC=∠ACD.
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Q4
In the given figure, AP is bisector of ∠A and CQ is bisector of ∠C of parallelogram ABCD. Prove that APCQ is a parallelogram
Join AC and show that diagonals AC and PQ bisect each other.
Join AC and show that diagonals AC and PQ bisect each other.
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Q5
In the given figure, $ OD$ and $ OE$ is the angle bisector of $ \angle AOC$ and $ \angle BOC$. Also, $ OD$ is perpendicular to $ OE$. Prove that $ A,O$ and $ B$ are collinear points.
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