The Explanation Behind Divisibility by 2

One of the basic mathematics that we learn in middle school mathematics is divisibility. There are rules that are usually memorized. A number is divisible by 2 if it is even; a number is divisible by 3 if the sum of its digits is divisible by 3. In this series, we are going to discuss […]
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A Detailed Proof about Congruent Angles

In this post, I want to explain in details how to prove about congruent angles. In the diagram below, and are complementary angles. Also, and are complementary angles. Now, if is congruent to , prove that is congruent to angle . Proof From the problem above, we have the following facts (given). and are complementary […]
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