`/_\ABC` is an obtuse triangle; obtuse-angled at B. If `AD_|_CB` ; prove that `(AC)^2 = (AB)^2 +(BC)^2 + 2 BC . BD`

In Delta ABC is an obtuse triangle; obtuse-angled at B.If AD perp CB; provet ^(2)(AC)^(^^)2=(AB)^(^^)2+(BC)^(^^)2+2BC*CD

In the given figure, Delta ABC is an obtuse triangle, obtuse-angled at B. If AD bot CB (produced ) prot that AC^(2)=AB^(2)+BC^(2)+2BC*BD

(Result on obtuse triangle) In Fig.4.183,ABC is an obtuse triangle,obtuse angled at B. If AD perp CB ,prove that AC^(2)=AB^(2)+BC^(2)+2BC xx BD (FIGURE)

∆ABC is a right angled triangle right angled at A and AD _|_ BC . Prove that AD^2 = BD.CD .

In fig. /_B of /_\ABC is an acute angle and AD _|_ BC ; prove that AC^2 = AB^2 + BC^2 - 2 BC xx BD

In triangleABC , angleB is an acute angle and AD botBC . Prove that AC^2= AB^2+BC^2-2BC.BD.

In fig., ABC is triangle in which angleABC > 90@0 and AD bot BC produced, prove that AC^2 = AB^2 + BC^2 + 2BC.BD . .

In Fig.6.58, ABC is a triangle in which angleABC>90^@ and AD_|_CB produced.Prove that AC^2=AB^2+BC^2+2BC.BD .