Explains the basic concept of congruent triangles with step-by-step instructions and methods for solving specific problems on your own relating to this topic.

This activity is designed to help students discover several important theorems concerning lengths of segments formed by intersecting chords, secants, and tangents.

The resource examines the Mean Value Theorem. Students sketch secant and tangent lines. The graph is available in PDF format.

The resource examines the Mean Value Theorem. Learners sketch secant and tangent lines. The graph is available in PDF format.

Students use the given graph to sketch secant and tangent lines. The resource consists of an enlarged printable version of a graph available in PDF format.

Learners sketch the secant and tangent lines of a given graph. The resource includes an enlarged printable version of a graph available in PDF format.

This study guide on circles covers some vocabulary and theorems about segments and lengths. It is available for download with free registration.

The handout investigates the calculus concept that given a section of a smooth curve, there is at least one point on that section where the slope of the curve is the same as the average derivative. The exercise consists of a graph that...

The handout investigates the calculus concept that given a section of a smooth curve, there is at least one point on that section where the slope of the curve is the same as the average derivative. The exercise consists of a graph that...

Formulas and illustrations show the different kinds of angles created by intersecting tangents, secants, radii, and in combination.

This site from the University of Saint Andrews provides an historical look at the origins of trig functions. This site ties together mathematics and history from Hipparchus to Ptolemy to Lambert.

This site offers numerous activities for middle school and high school learners to explore using Geometer's Sketch Pad.