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# Not a big question...

Guys I have a very obvious query , but still I want to ask you all if this is true or not:

If a triangle has its circumcenter on one of its sides , then it is a right angled triangle.

Please tell me if this is true or not , since I am working to construct a problem. (Most probable TONCAS) . Thanks!

Note by Nihar Mahajan
2 years ago

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Yes, Let the triangle be ABC and let the circumcentre O lie on BC. Now OB=OC. Thus O is the midpoint of BC and OA=OB=OC. Thus A=90(Simple angle chasing) · 2 years ago

Yeah I got it too. Also , I got a my own TONCAS problem! Trying to prove it... :D · 2 years ago

Which daily workout are you on? · 2 years ago