Last summer, I had a chance to sail in a local Wednesday night race with some friends I had not seen in a while. They have a PHRF boat they sail in the jib and main class, and although their priority ...

I'm reading Randall Munroe's book How To: Absurd Scientific Advice for Common Real-World Problems. I probably don't have to tell you this, but it's awesome (as is everything from Randall Munroe, the ...

When calculating angles using a circle theorem, always state which theorem applies. It may not be possible to calculate the missing angle immediately. It may be necessary to calculate another angle ...

A full turn around a point equals 360º. If a full turn equals 360º, then the sum of the angles around a point must also be 360º. When you calculate angles around a point, you can use this fact to find ...

“Why are there 360 degrees in a circle?” A regular reader recently asked me that question. My first response was to say “Because Miss Helland told me so.” Miss Helland was my high school teacher for ...