[T_(m)Delta ABC,quad /_ABC=135^(@)" .Prome thet "],[AC^(2)=AB^(2)+BC^(2)+4a_(2)CDABC)]

In a ABC,/_ABC=135o. Prove that AC^(2)=AB^(2)+BC^(2)+4ar(ABC)

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

In Delta ABC seg AD perp seg BC,DB=3CD Prove that 2AB^(2)=2AC^(2)+BC^(2)

In a triangle ABC,angleB=35^(@) and angleC=55^(@) .Write of the following is true AC^(2)=AB^(2)+BC^(2) AB^(2)=BC^(2)+AC^(2) BC^(2)=AB^(2)+AC^(2)

in Delta ABC,/_A=2/_B Prove that BC^(2)=AC^(2)+AC.AB

In Delta ABC , BD : CD = 3 : 1 and AD _|_ BC . Prove that 2(AB^(2) - AC^(2)) = BC^(2) .

In Delta ABC, "seg" AD bot "seg" BC, DB = 3CD . Prove that: 2 AB^(2) = 2AC^(2) + BC^(2)

In figure, AD is a median of a triangle ABC and AM bot BC. Prove that AC ^(2) + AB ^(2) = 2 AD ^(2) + (1)/(2) BC ^(2).

In the given figure, the of a Delta ABC , interesects BC at D such DB=3CD . Prove that 2AB^(2)=2AC^(2)+BC^(2)