Perpendicular Segments in a Circle

Author

Texas Instruments

Alignment

Standards Alignment

Textbook Alignment

Subject Area

Math: Geometry: Circles

Level

9-12

Activity Time

20 Minutes

Software

TI Connect™

TI Calculator

TI-84 series

Applications

Cabri™ Jr. for TI-83 Plus and TI-84 Plus

Resource Types

Lessons

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Perpendicular Segments in a Circle

Activity Overview

Students learn about chords of a circle. They draw a line perpendicular to the chord and passing through the center of the circle. They explore the lengths of the two segments of the chord. They investigate with a different chord and with different sized circles. NCTM Geometry Standard covered: Analyze characteristics and properties of 2- and 3-dimensional geometric shapes and develop mathematical arguments about geometric relationships.

Before the Activity

Install the Cabri™ Jr. App on the students' graphing calculators using TI Connect™, a TI Connectivity Cable, and the Unit-to-Unit Link Cable

See the attached PDF file for detailed instructions for this activity

Print pages 38-39 from the attached PDF file for your class

During the Activity

Distribute the pages to your class.

Follow the Activity procedures:

Draw a circle

Draw a chord in the circle

Draw a line perpendicular to the chord and passing through the center of the circle

Explore the lengths of the two segments of the chord

After the Activity

Review student results:

As a class, discuss questions that appeared to be more challenging

Re-teach concepts as necessary

Download Files

Download All Files (ZIP)

Before the Activity Files

Teacher Notes PDF

Author

Texas Instruments

Alignment

Standards Alignment

Textbook Alignment

Subject Area

Math: Geometry: Circles

Level

9-12

Activity Time

20 Minutes

Software

TI Connect™

TI Calculator

TI-84 series

Applications

Cabri™ Jr. for TI-83 Plus and TI-84 Plus

Resource Types

Lessons

Report an Issue

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Perpendicular Segments in a Circle

Cabri™ Jr. for TI-83 Plus and TI-84 Plus

Perpendicular Segments in a Circle

Before the Activity Files

Cabri™ Jr. for TI-83 Plus and TI-84 Plus

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