[" In "/_ABC,AD perp BC],[" and "AD^(2)=BD*CD],[" Prove that "/_BAC=90^(@)" ."]

In ABC, if AD perp BC and AD^(2)=BD xx DC, prove that /_BAC=90o

In a ABC,AD perp BC and AD^(2)=BD xx CD prove that ABC is a right triangle.

In a ABC, AD perp BC and AD^(2)=BD xx CD .Prove that ABC is a right triangle.

In Delta ABC , AD bot BC and AD^(2)= BD xx CD . Prove that AB^(2) + AC^(2) = (BD + CD)^(2)

In triangle ABC, if AD perp BC and AD^(2)=BD*DC. Then find the angle BAC

In triangles ABC , AD is perpendicular to BC and AD^(2) = BD xx DC . Prove that angle BAC = 90 ^(@)

ABC is a triangle in which /_B=2/_C*D is a point on BC such that AD bisects /_BAC and AB=CD. Prove that /_BAC=72^(@) .

ABC is a triangle in which /_B=2/_CD is a point on BC such that AD bisects /_BAC and AB=CD. Prove that /_BAC=72^(0) .

In Figure 3,AD perp BC and BD=(1)/(3)CD Prove that 2CA^(2)=2AB^(2)+BC^(2)

In ABC,/_C is an obtuse angle.AD perp BC and AB^(2)=AC^(2)+3BC^(2). Prove that BC=CD.