A Hard Geometry Problem

Some call this the "hardest easy

People around the world have asked me this and similar

Here are two classic

This was

In the figure, what is the value of angle x? This

Learn how to find the unknown angle x in this triangle. Use the Exterior Angle Theorem and the Straight Angle Property.

Geometry

This puzzle is world's toughest and easiest

Are

Thanks to Bill from New York for this suggestion! Bill emailed me a

A rectangle R is tiled by smaller rectangles, each of which has either an integer height or an integer width (or both). Prove the ...

This seemingly simple

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https://andymath.com/

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