Angular Bisector

Q.

Draw an angle of ${90}^{\circ }$ and construct its bisector. [3 MARKS]

Q.

Construct triangle XYZ in which XY=6.3 cm , angle Y = 60 degree , angle Z =75 degree .

Q. __________ is a line segment that bisects the vertex angles of a triangle.

1. Angular bisector
2. Median
3. Orthocentre
4. Edge

Q. ABC is a triangle with AD as the angular bisector. If $\angle A={60}^{\circ }$, $\angle B={40}^{\circ }$ and $\angle C={80}^{\circ }$ , then $\angle BAD$=____.

1. ${30}^{\circ }$
2. ${60}^{\circ }$
3. ${45}^{\circ }$
4. ${90}^{\circ }$

Q. Angles to be bisected to obtain an angle of ${90}^{\circ }$ are:

1. ${60}^{\circ }$
2. ${60}^{\circ }$ and ${120}^{\circ }$
3. ${120}^{\circ }$ and ${180}^{\circ }$
4. $0^{\circ }$ and ${60}^{\circ }$

Q.

Fill in the blanks :

(iiI) The three perpendicular bisectors in a triangles meet in a point called the________.