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In a quadrilateral `A B C D ,C O` and `D O` are the bisectors of `/_C` and `/_D` respectively. Prove that `/_C O D=1/2(/_A+/_B)dot`

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In a quadrilateral A B C D ,\ C O\ a n d\ D O are the bisectors of /_C\ a n d\ /_D respectively. Prove that /_C O D=1/2(/_A+/_B)dot

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RD SHARMA ENGLISH-QUADRILATERALS-All Questions
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  13. In Figure, P Q R S is a parallelogram, P O\ a n d\ Q O are, respective...

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  14. The diagonals of a parallelogram A B C D intersect at O. A line thro...

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  15. In Figure, A B C D is a parallelogram and /D A B=60^@. If the bisector...

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  16. In a parallelogram A B C D , the bisector of /A also bisects B C at X....

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  19. A B C D is a parallelogram. A B is produced to E so that B E=A B . Pro...

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  20. Two opposite angles of a parallelogram are (3x-2)^0\ a n d\ \ (50-x)...

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