Curated OER
Geometry/Math A Regents Questions: Angle Bisectors
For this angle bisector worksheet, students solve five short answer and multiple choice problems. Students construct angle bisectors using a compass.
Curated OER
Proofs
In this geometric proof learning exercise, students compose 20 triangle congruency proofs. Students will decide if there is enough information in problems 1-6 to prove if any triangles are congruent. In problems 17 to 20, students use...
Curated OER
Constructing a Perpendicular Bisector
Students practice constructing a perpendicular bisector. During a demonstration, they discover the meaning of bisector and perpendicular and answer questions why these steps shown are going to work. They use a compass and a...
McGraw Hill
Glencoe: Self Check Quizzes 1 Bisectors
Use Glencoe's randomly generated self-checking quiz to test your knowledge of bisectors. Each question has a "Hint" link to help. Choose the correct answer for each problem. At the bottom of the page click the "Check It" button and the...
Texas Instruments
Texas Instruments: Bisectors
Students investigate the Perpendicular Bisector Theorem and examine its converse. They also explore the Angle Bisector Theorem.
Texas Instruments
Texas Instruments: Cabri Geometry Tour
In this activity, students use the Cabri software to mark points, draw lines, construct parallel and perpendicular lines, angles, bisectors, and triangles. They learn how to use the tool to measure angles.
Wolfram Research
Wolfram Math World: Angle Bisector
MathWorld offers a definition for an interior angle bisector accompanied by an example this site also gives a formula for the lenght of the bisector of a triangle.
The Math League
The Math League: Angles and Angle Terms: Angle Bisector
A tutorial on angles with definitions, examples, and pictures.
ClassFlow
Class Flow: Triangle Segments
[Free Registration/Login Required] In this flipchart, students use the interactive features of Activstudio to understand how to use the properties of perpendicular bisectors, angle bisectors, medians and altitudes of a triangle.