Circles have different angle properties, described by a number of theorems. This is one of two guides on circle theorems, with this guide covering the following: the angle subtended by an arc at the ...

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 ...

Calculating the traverse that represents a parcel can benefit significantly from something that is not properly taught: The use of azimuths. What is an azimuth? It is a horizontal angle of a line, ...