" In "Delta ABC(" Fig."4.59" ) "," if "/_1=/_2," prove that "(AB)/(AC)=(BD)/(DC)" ."

In ABC( Fig.4.59), if /_1=/_2, prove that (AB)/(AC)=(BD)/(DC).( FIGURE )

In Delta ABC it is given that (AB)/(AC)=(BD)/(DC) . If angle B=70^(@) and angle C=50^(@) "then" angle BAD=?

In fig. if AC=BD, then prove that AB=CD

In fig.if ,prove that AB^(2)+CD^(2)=BD^(2)+AC^(2)

In Fig.4.58,ABC is a triangle such that (AB)/(AC)=(BD)/(DC),/_B=70o,quad /_C=50o. Find /_BAD. (FIGURE)

In Delta ABC, AB= AC . Side BC is produced to D. Prove that (AD^(2)-AC^(2))=BD*CD .

In Fig. if AC = BD, then prove that AB = CD.

In Fig. if AC = BD, then prove that AB = CD.

AD is the bisector of /_BAC of /_\ABC , where D is a point on BC. Prove that (BD)/(DC)=(AB)/(AC) .

In Delta ABC, AD_|_ BC . Prove that AB^(2) - BD^(2) =AC^(2) -CD^(2)