Monthly Archives: June 2014

Swale’s Method

Posted on June 10, 2014 by Sumant Sumant

This allows to find the radius of the circle whose centre is not known by using only two arcs and two segments. 

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Property of a right triangle (relation between altitude and incircles)

Posted on June 10, 2014 by Sumant Sumant

This is a strange property of right angled triangle. Given in Ross Honsberger’s book. Let us think of a triangle ABC right angled at B with AC as the hypotenuse. So if there is an incircle of radius r. Then … Continue reading →

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Divisibility of sum by the remaining

Posted on June 2, 2014 by Sumant Sumant

One is suppose you are given a quadrilateral such that sum of any three sides is divisible by the fourth then prove that two of its sides are equal. To prove it assume that all four sides are of different … Continue reading →

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