[Free Registration/Login may be required to access all resource tools.] Use the Triangle Proportionality Theorem and its converse.

[Free Registration/Login may be required to access all resource tools.] In this lesson, students apply chord theorems. Students examine guided notes, review guided practice, watch instructional videos and attempt practice problems.

[Free Registration/Login may be required to access all resource tools.] This concept teaches students about tangent lines and how to apply theorems related to tangents of circles.

[Free Registration/Login may be required to access all resource tools.] This concept teaches students four theorems about chords and how to apply them. Students examine guided notes, review guided practice, watch instructional videos and...

[Free Registration/Login may be required to access all resource tools.] This study guide looks at properties and theorems about trapezoids and kites.

[Free Registration/Login may be required to access all resource tools.] This study guide looks at proportionality theorems for triangles and parallel lines intersected by transversals.

This study guide on parallelograms covers types of quadrilaterals, properties of parallelograms and theorems that describe them, how to identify parallelograms, and special types of parallelograms. It is available for download with free...

This study guide on arcs and angles covers key vocabulary, arc measurement in degrees and radians, congruent arcs, bisecting arcs, and the angles on, inside, and outside a circle. Also covers formulas and theorems. It is available for...

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

[Free Registration/Login may be required to access all resource tools.] In this lesson students apply the properties of equilateral triangles. Students examine guided notes, review guided practice, watch instructional videos and attempt...

[Free Registration/Login may be required to access all resource tools.] This concept will teach students the properties of equilateral triangles and how to apply them to solve problems. Students examine guided notes, review guided...

[Free Registration/Login may be required to access all resource tools.] Use the Pythagorean Theorem to determine if triangles are acute, obtuse, or right triangles.

[Free Registration/Login Required] Students will determine the number of pixels a phone has on the screen by using the pythagorean theorem and pythaogrean triple. Click learn more to watch a video and click challenge me to answer a...

[Free Registration/Login Required] Students use the distance formula and the pythagorean theorem to determine the quickest route to the treasure. Click learn more to watch a video and click challenge me to answer a practice question.

Students learn about the Pythagorean Theorem. Notes, practice problems, and examples are included in the geometry resource.

This calculator solves the Pythagorean Theorem equation for sides a or b, or the hypotenuse c. The hypotenuse is the side of the triangle opposite the right angle.

Consider two parallel lines that are intersected by a transversal, and when it crosses the two others, many different angle pairs are formed. See the special properties of the angle pairs in this interactive.

[Free Registration/Login may be required to access all resource tools.] Finding and understanding the angle measures of triangles.

This site is for the purpose of using proofs for geometry. It helps by giving some useful theorems.

In this activity, students study various geometric theorems.

[Free Registration/Login may be required to access all resource tools.] Calculate the distances between two points using the distance formula.

Cabri Jr. activity to study the Side-Splitter Theorem. Page numbers come from Prentice Hall Geometry textbook.

An explanation and proof of the Four Color Map Theorem. Includes illustrative images and a plethora of information.

To prove the Perpendicular Bisectors Theorem using the Cabri Jr. Application, graphically and algebraically.