Draw the bisector of `/_AOB=60^(@)`.

Draw perpendicular bisector of AB=6.4cm.

Draw an angle bisector of 75°.

In a parallelogram ABCD, the bisectors of /_A and /_B meet at O. Find /_AOB.

In quadrilateral ABCD,AO and BO are the bisectors of /_A and /_B respectively.Prove that /_AOB=(1)/(2)(/_C+/_D)

Construct a DeltaABC in which AB = 5 cm, angle A = 60^(@) and angleB = 45^(@) . Draw the bisector of angleA and angleB . If these bisectors intersect at M. Measure CM.

Draw an angle ABC=60^(@) . Draw the bisector of it. Also draw a line parallel to BC a distance of 2.5 cm from it. Let this parallel line meet AB at point P and angle bisectors at point Q. measure the lengths of BP and PQ. Is BP=PQ?

Construct a DeltaABC in which AB = 5 cm, BC = AC cm angleA = 60^(@) . Draw the perpendicular bisector of AB and BC. If these bisector intersect at O. Measure OA and OB.

O is any point inside a triangle ABC. The bisector of /_AOB,/_BOC and /_COA meet the sides AB,BC and CA in point D, and F respectively.Show that ADxBExCF =DBxECFA