[" 1"n" an isomceles "/_ABC" ,if "AB=BC" and "AB^(2)-2AC^(2)" ,then "/_C],[" ore that "ABBC" ,ufe "AB-BC" afte "AB^(2)=2AC^(2),pi a/_C],[[" (1) "30^(@)," (2) "45^(@)," (3) "60^(@)," (4) "90^(@)]]

In an isosceles Delta ABC , if AC=BC and AB ^(2)= 2AC^(2) then angle C=?

In an isosceles Delta ABC , if AC=BC and AB ^(2)= 2AC^(2) "then" angle C=?

In an isosceles triangle ABC if AC=BC and AB^2 = 2AC^2 , prove that /_C is a right angle.

ABC is an isosceles triangle of which AC=BC and AB^(2) = 2AC^(2) . Then value of /_C will be -

In /_\ABC , right angled at B, if AB:BC=3:4 and AC=20 , then find AB and BC.

Draw a triangle ABC, with AC=4cm,BC=3cm and /_C=80^(@) . Measure AB. Is (AB)^(2)=(AC)^(2)+(BC)^(2)? If not,which one of the following is true: (AB)^(2)>(AC)^(2)+(BC)^(2) or (AB)^(2)<(AC)^(2)+(BC)^(2)?

In Delta ABC , AD is a median and AM _|_ BC.Prove that (a) AC^(2) = AD^(2) +BC.DM+ ((BC)/(2))^(2) (b) AB^(2) = AD^(2) -BC.DM+ ((BC)/(2))^(2) (c ) AC^(2) + AB^(2) = 2AD^(2) +(1)/(2) BC^(2)

Draw a triangle ABC, with AC=4cm,BC=3cm and /_C=105^(@) . Measure AB. Is (AB)^(2)=(AC)^(2)+(BC)^(2)? If not,which one of the following is true: (AB)^(2)>(AC)^(2)+(BC)^(2) or (AB)^(2)<(AC)^(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)

If A=[(a^(2),ab,ac),(ab,b^(2),bc),(ac,bc,c^(2))] and a^(2)+b^(2)+c^(2)=1 , then A^(2)=