Hope that you have already tried to solve the corresponding 10 SSC CGL Tier II level questions that had quite a variety and depth (triangles, circles, medians, parallelogram, interior bisectors and inscribed circle). And these detailed solutions of the questions should give you a clear idea on how to solve the questions easily and quickly....
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Basic triangle formation concept
Relation between median and sides of triangle: Sum of two sides is larger than the median from common vertex and three times sum of squares of length of sides equals four times the squares of medians of a triangle.