In an isosceles triangle ABC, if …
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Naveen Sharma 6 years, 10 months ago
Ans.
Given: AC = BC
ABC is an Isosceles triangle
AB2 = 2 AC2
To Find = {tex}\angle C{/tex}
Proof :
As AB2 = 2AC2
=> AB2 = AC2 + AC2
=> AB2 = AC2 + BC2 [Given AC = BC]
So By Converse of Pythagoras theorem
{tex}\angle C = 90^o{/tex}
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