Description: In this lesson students see an example that shows why the volume of a pyramid involves a factor of one-third. They then use this to generalize the formulas for the volume of pyramids and cones.
Description: In this lesson students use the perpendicular relationship between the tangent to a circle and its radius to help write the equations of tangent lines in the coordinate plane. The point-slope form of the line is emphasized.
Description: In this lesson students review how to find the area of parallelograms and triangles. They then use various tools such as coordinate geometry and trigonometry to find more challenging areas.
Description: In this lesson students learn a variety of additional facts about inscribed angles such as an angle inscribed in a semicircle is right as well as two inscribed angles intercepting the same arc are equal.
Description: In this lesson students learn about the relationships that arise when two chords intersect in a circle. They use similarity and other theorems to help prove these relationships and then apply them in a variety of contexts.