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More Math Games and Math Trivia

Math Worksheets

Angles in a 5-pointed Star

Here's a cute little exercise for students taking a beginning geometry class: Draw a 5-pointed star and discover something interesting about the angles at each of its points

Here's a little known extra magic property of magic squares! Is it always true or just coincidentally true for the standard examples I present?

Is it obvious that through any three (non-collinear) points one can draw a circle through them? That is, is it true that every triangle sits perfectly inside some circle with all three of its vertices on that circle? How about the other way round? Is there always a circle that sits inside a triangle touching each of its three sides?

We use equidistance to swiftly show that the answers to both of these questions is yes!

Did you know that the ratio described in the Law of Sines for a triangle equals the diameter of the circle that circumscribes the triangle? Here's why!

Rotate to landscape screen format on a mobile phone or small tablet to use the **Mathway** widget, a free math problem solver that **answers your questions with step-by-step explanations**.

You can use the free Mathway calculator and problem solver below to practice Algebra or other math topics. Try the given examples, or type in your own problem and check your answer with the step-by-step explanations.

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