In Fig, ray AZ bisects `angleDAB` as well as `angleDCB`.
Is CD = CB? Give reasons.

In Fig, ray AZ bisects angleDAB as well as angleDCB . State the three pairs of equal parts in triangles BAC and DAC.

In the adjoining figure. Is AD = CB ? Give reasons.

In fig Ad = CD and AB = CB. Does BD bisect angleABC ? Give reasons.

DeltaABC and DeltaDBC are two isosceles triangles on the same base BC and vertices A and D are on the same side of BC (See Fig. ).If AD is extended to intersect BC at P, show that AP bisects angleA as well as angleD .

DeltaABC and DeltaDBC are two isosceles triangles on the same base BC and vertices A and D are on the same side of BC (See Fig. ).If AD is extended to intersect BC at P, show that AP bisects angleA as well as angleD .

In given Fig. , ABC is a triangle with base BC. If the base angles of DeltaABC are 75^@ and 55^@ , state which of two is 75^@ ? If AM bisects the exterior angle angleBAX and AP II CB find angleMAP .

Electromagnetic waves Electromagnetic waves are those waves in which there are sinusoidal variations of electric and magnetic fields at right angle to each other as well as right angle to the direction of propagation. The ratio of electric vector and magnetic vector gives the velocity of light and vecExxvecB gives the direction of propagation of electromagnetic wave. Which of the following rays are not electromagnetic waves?

Electromagnetic waves Electromagnetic waves are those waves in which there are sinusoidal variations of electric and magnetic fields at right angle to each other as well as right angle to the direction of propagation. The ratio of electric vector and magnetic vector gives the velocity of light and vecExxvecB gives the direction of propagation of electromagnetic wave. Which of the following rays has minimum wavelength?

In Fig. 9.24, ABC and ABD are two triangles on the same base AB. If line- segment CD is bisected by AB at O, show that ar(ABC) = ar (ABD).

In the fig. AB=AC , D is the point in the interior of triangleABC such that angleDBC=angleDCB . Prove that AD bisects angleBAC and triangleABC