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121 Notes and answers Reg Geo.notebook 1 December 04, 2015 Nov 259:39 PM Identify tangents, secants, and chords. Use properties of tangents to solve problems. Objectives Nov 259:39 PM

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Page 1: 12-1 Notes and answers Reg Geo.notebookimages.pcmac.org/.../12-1_Student_Notes_Reg_Geo.pdf121 Notes and answers Reg Geo.notebook 2 December 04, 2015 Nov 259:39 PM Example 1: Identifying

12­1 Notes and answers Reg Geo.notebook

1

December 04, 2015

Nov 25­9:39 PM

Identify tangents, secants, and chords.

Use properties of tangents to solve problems.

Objectives

Nov 25­9:39 PM

Page 2: 12-1 Notes and answers Reg Geo.notebookimages.pcmac.org/.../12-1_Student_Notes_Reg_Geo.pdf121 Notes and answers Reg Geo.notebook 2 December 04, 2015 Nov 259:39 PM Example 1: Identifying

12­1 Notes and answers Reg Geo.notebook

2

December 04, 2015

Nov 25­9:39 PM

Example 1: Identifying Lines and Segments That Intersect Circles

Identify each line or segment that intersects 8L.chords:

secant:

tangent:

diameter:

radii:

JM and KM

KM

JM

m

LK, LJ, and LM

Nov 25­9:39 PM

Check It Out! Example 1

Identify each line or segment that intersects 8P.

chords:

secant:

tangent:

diameter:

radii:

QR and ST

ST

PQ, PT, and PS

UV

ST

Page 3: 12-1 Notes and answers Reg Geo.notebookimages.pcmac.org/.../12-1_Student_Notes_Reg_Geo.pdf121 Notes and answers Reg Geo.notebook 2 December 04, 2015 Nov 259:39 PM Example 1: Identifying

12­1 Notes and answers Reg Geo.notebook

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December 04, 2015

Nov 25­9:39 PM

Nov 25­9:39 PM

A common tangent is a line that is tangent to two circles.

Page 4: 12-1 Notes and answers Reg Geo.notebookimages.pcmac.org/.../12-1_Student_Notes_Reg_Geo.pdf121 Notes and answers Reg Geo.notebook 2 December 04, 2015 Nov 259:39 PM Example 1: Identifying

12­1 Notes and answers Reg Geo.notebook

4

December 04, 2015

Nov 25­9:39 PM

A common tangent is a line that is tangent to two circles.

Nov 25­9:39 PM

Page 5: 12-1 Notes and answers Reg Geo.notebookimages.pcmac.org/.../12-1_Student_Notes_Reg_Geo.pdf121 Notes and answers Reg Geo.notebook 2 December 04, 2015 Nov 259:39 PM Example 1: Identifying

12­1 Notes and answers Reg Geo.notebook

5

December 04, 2015

Nov 25­9:39 PM

Nov 25­9:39 PM

Example 4: Using Properties of Tangents

HK and HG are tangent to 8F.  Find HG.

Page 6: 12-1 Notes and answers Reg Geo.notebookimages.pcmac.org/.../12-1_Student_Notes_Reg_Geo.pdf121 Notes and answers Reg Geo.notebook 2 December 04, 2015 Nov 259:39 PM Example 1: Identifying

12­1 Notes and answers Reg Geo.notebook

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December 04, 2015

Nov 25­9:39 PM

Check It Out! Example 4a

Nov 25­9:39 PM

Check It Out! Example 4b

Page 7: 12-1 Notes and answers Reg Geo.notebookimages.pcmac.org/.../12-1_Student_Notes_Reg_Geo.pdf121 Notes and answers Reg Geo.notebook 2 December 04, 2015 Nov 259:39 PM Example 1: Identifying

12­1 Notes and answers Reg Geo.notebook

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December 04, 2015

Nov 25­10:01 PM

Assignment(p. 797) 9, 10, 12, 26