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14 Notes and answers.notebook 1 August 22, 2013 Aug 214:31 PM Identify adjacent, vertical, complementary, and supplementary angles. Find measures of pairs of angles. Objectives Aug 214:31 PM

Identify adjacent, vertical, complementary, and ...images.pcmac.org/SiSFiles/Schools/AL/MadisonCity... · 14 Notes and answers.notebook 1 August 22, 2013 Aug 214:31 PM Identify adjacent,

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Page 1: Identify adjacent, vertical, complementary, and ...images.pcmac.org/SiSFiles/Schools/AL/MadisonCity... · 14 Notes and answers.notebook 1 August 22, 2013 Aug 214:31 PM Identify adjacent,

1­4 Notes and answers.notebook

1

August 22, 2013

Aug 21­4:31 PM

Identify adjacent, vertical, complementary, and supplementary angles.

Find measures of pairs of angles.

Objectives

Aug 21­4:31 PM

Page 2: Identify adjacent, vertical, complementary, and ...images.pcmac.org/SiSFiles/Schools/AL/MadisonCity... · 14 Notes and answers.notebook 1 August 22, 2013 Aug 214:31 PM Identify adjacent,

1­4 Notes and answers.notebook

2

August 22, 2013

Aug 21­4:31 PM

Tell whether the angles are only adjacent, adjacent and form a linear pair, or not adjacent.

Example 1: Identifying Angle Pairs

∠AEB and ∠BED

∠AEB and ∠BEC

∠DEC and ∠AEB

A.

B.

C.

Aug 21­4:31 PM

Check It Out! Example 1a, 1b, 1c

∠5 and ∠6

Tell whether the angles are only adjacent, adjacent and form a linear pair, or not adjacent.

∠7 and ∠SPU

∠7 and ∠8

1a.

1b.

1c.

Page 3: Identify adjacent, vertical, complementary, and ...images.pcmac.org/SiSFiles/Schools/AL/MadisonCity... · 14 Notes and answers.notebook 1 August 22, 2013 Aug 214:31 PM Identify adjacent,

1­4 Notes and answers.notebook

3

August 22, 2013

Aug 21­4:31 PM

complementary angles:  two angles whose measures have a sum of 90 degrees

supplementary angles:  two angles whose measures have a sum of 180 degrees

Aug 21­4:31 PM

Find the measure of each of the following.

Example 2: Finding the Measures of Complements and Supplements

A. complement of ∠F

B. supplement of ∠G

Page 4: Identify adjacent, vertical, complementary, and ...images.pcmac.org/SiSFiles/Schools/AL/MadisonCity... · 14 Notes and answers.notebook 1 August 22, 2013 Aug 214:31 PM Identify adjacent,

1­4 Notes and answers.notebook

4

August 22, 2013

Aug 21­4:31 PM

Check It Out! Example 2

a. complement of ∠E

Find the measure of each of the following.

b. supplement of ∠F

Aug 21­4:31 PM

An angle is 10° more than 3 times the measure of its complement. Find the measure of the complement.

Example 3: Using Complements and Supplements to Solve Problems

Page 5: Identify adjacent, vertical, complementary, and ...images.pcmac.org/SiSFiles/Schools/AL/MadisonCity... · 14 Notes and answers.notebook 1 August 22, 2013 Aug 214:31 PM Identify adjacent,

1­4 Notes and answers.notebook

5

August 22, 2013

Aug 21­4:31 PM

Check It Out! Example 3

An angle’s measure is 12° more than    the measure of its supplement. Find the measure of the angle.

Aug 21­4:31 PM

vertical angles:  two nonadjacent angles formed by two intersecting lines

1 and    32 and    4

Page 6: Identify adjacent, vertical, complementary, and ...images.pcmac.org/SiSFiles/Schools/AL/MadisonCity... · 14 Notes and answers.notebook 1 August 22, 2013 Aug 214:31 PM Identify adjacent,

1­4 Notes and answers.notebook

6

August 22, 2013

Aug 21­4:31 PM

Example 5: Identifying Vertical Angles

Name the pairs of vertical angles.

Aug 21­7:51 PM

Assignment(p. 32) 14­17, 23, 27, 29, 33, 34­37, 44­46