Two polygons are similar if all their corresponding angles are congruent, or all their corresponding sides are proportional. For instance, we can say that triangle is similar to triangle if one of the following conditions hold: Condition 1: and and Condition 2: and and . In this post, we are going to use the concept […]

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# Monthly Archives: October 2013

## The Proof of the Cyclic Quadrilateral Theorem

A cyclic quadrilateral is a quadrilateral inscribed in a circle. A polygon that is inscribed in a circle is a polygon whose vertices are on the circle. Some of the inscribed polygons are shown in the next figure. In this post, we are going to show a special property of one inscribed polygon which is […]

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## Mathematical Fallacy: A Classic Proof That 1 Equals 0

Mathematical proofs are one of the most distinguishing beauty of mathematics. But the taken for granted beauty “on the other side” are the fallacies. These are construction of mathematical proofs that conceals some errors and inconsistencies and therefore presents an untrue statement to be true. One example of such is a classic proof that 1 […]

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