Tag: proportion

Theorems on Triangles with Proportional Sides

This is the second in the series of posts about important and useful theorems in secondary school geometry. The first set of theorems¬†is about angles of triangles. This second set involves the proportional sides of similar triangles.¬†Proofs and sample problems will be provided in the next few posts. Definition: Similar Triangles Two triangles are similar…

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Ratio and probability problem

It is always assumed that a sample has all the characteristics of the population from which it is taken. For example, if it is given that the ratio of men to women in a population is 2:3 or 40% to 60%, the same will be true to the sample. Problem A survey has shown that…

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