In the figure the bisectors of `angleP` and `angleQ` intersect to each other at a point R. Prove that `angle PRQ = 90^@.`

In a parallelogram ABCD, the bisectors of angleA and angleB intersect each other at point P. Prove that angleAPB=90^(@).

In a parallelogram ABCD, the bisectors of angleA and angleB intersect each other at point P. Prove that angleAPB=90^(@).

In parallelogram ABCD, the bisectors of adjacent angles A and D intersect each other at point P. prove that angleAPD=90^(@) .

In DeltaABC , the bisectors of angleB and angleC intersect each other at O. Prove that. angleBOC=90^(@)+(1)/(2)angleA .

In the given Fig , Sides AB and AC of a DeltaABC are produced to E and D respectively. If respective bisectors BO and CO of angleCBE and angleBCD intersect each other at point O, prove that angleBOC = 90^@-1/2 angleBAC .

In the given Fig , Sides AB and AC of a DeltaABC are produced to E and D respectively. If respective bisectors BO and CO of angleCBE and angleBCD intersect each other at point O, prove that angleBOC = 90^@-1/2 angleBAC .

In a DeltaABC, the bisectors of angleBandangleC intersect each other point O. Then angleBOC is ?

In DeltaABC , bisectors of angleB and angleC interesct each other at point O. Prove that angleBOC=90^(@)+(1)/(2)angleA i.e., angle1 =90^(@)+(1)/(2)

In DeltaABC , bisectors of angleB and angleC interesct each other at point O. Prove that angleBOC=90^(@)+(1)/(2)angleA i.e., angle1 =90^(@)+(1)/(2) A

In DeltaABC , bisectors of angleB and angleC interesct each other at point O. Prove that angleBOC=90^(@)+(1)/(2)angleA i.e., angle1 =90^(@)+(1)/(2)