Question

ABC is an isosceles triangle in which AB=AC and BC²=AB². Prove that triangle ABC is an right angled Triangle


If you want 25 points then answer this question correctly​

Answer 1

Answer:

In △ABC,

By Pythagoras Theorem,

(AB)2=(AC)2+(BC)2...(1)

Since, △ABC is an isosceles triangle,

∴ AC=BC....(2)

∴ From (1) and (2),

(AB)2=2(AC)2   [henceproved]