In a quadrilateral `A B C D ,` bisectors of angles `A\ a n d\ B` intersect at `O` such that `/_A O B=75^0,` then write the value of `/_C+\ /_D`

In A B C , if bisectors of /_A B C\ a n d\ /_A C B intersect at O at angle of 120^0 , then find the measure of /_A

A B C D is a square. A C\ a n d\ B D intersect at O . State the measure of /_A O B .

In a parallelogram A B C D , the bisectors of /_A\ a n d\ /_B meet at Odot Find /_A O Bdot

If the bisectors of two adjacent angles A\ a n d\ B of a quadrilateral A B C D intersect at a point O such that /_C+/_D=k/_A O B , then find the value of k .

In a triangle A B C ,\ /_A B C=\ /_A C B and the bisectors of /_A B C\ a n d\ /_A C B intersect at O such that /_B O C=120^0dot Show that /_A=/_B=/_C=60^0 .

In a quadrilateral A B C D , if bisectors of the /_A B Ca n d/_A D C meet on the diagonal A C , prove that the bisectors of /_B A Da n d/_B C D will meet on the diagonal B Ddot

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

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

The diagonals of quadrilateral A B C D ,A C and B D intersect in Odot Prove that if B O=O D , the triangles A B C and A D C are equal in area. GIVEN : A quadrilateral A B C D in which its diagonals A C and B D intersect at O such that B O = O Ddot TO PROVE : a r( A B C)=a r( A D C)

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