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In a triangle ABC and R is the radius of the circle into which the triangle is inscribed(in other words it is the circum radius of the triangle) then prove it is an equilateral triangle
Dear ankit,
we know that . Multiply out the left side to get . Thus the equation becomes , which you can write as . That obviously only holds if .
We are all IITians and here to help you in your IIT JEE preparation. All the best. If you like this answer please approve it.... win exciting gifts by answering the questions on Discussion Forum Sagar Singh B.Tech IIT Delhi sagarsingh24.iitd@gmail.com
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