A technician often has to sketch or design ductwork and the other parts of an HVAC system. Sometimes you have to sketch the room or building you are working with. This means working with lines, angles ...

Calculate the arc length to 2 decimal places. First calculate what fraction of a full turn the angle is. 90° is one quarter of the whole circle (360°). Therefore, the arc length is \(\frac{1}{4}\) of ...

I discuss a teaching experiment that sought to characterize precalculus students' angle measure understandings. The study's findings indicate that the students initially conceived angle measures in ...

A chord separates the circumference of a circle into two sections - the major arc and the minor arc. It also separates the area into two segments - the major segment and the minor segment. Calculate ...