Category Archives: Distance and Circles

Conceptualizing Circular Motion

Posted on September 17, 2009 by eric

Circular motion can be difficult to describe. The basic concept is simple — an object moving around a circle! The difficulty comes in when you start dealing with the math: sine functions, right triangles and velocity. In this problem, we … Continue reading →

Posted in Distance and Circles, Pencast, Plotting, Graphs, Trigonometry | Tagged , , | 3 Comments

Find the Center and Radius of a Circle

Posted on September 16, 2009 by eric

Find the center and radius of a circle. If you remember the Pythagorean Theorem, you’re almost there. Circles and right triangles go hand-in-hand when you’re graphing circles. Ultimately, grpaphing circles involves just a few transformations, starting from the standard equation … Continue reading →

Posted in Distance and Circles, Pencast, Plotting, Graphs, Trigonometry | Tagged , , | 2 Comments