Post on 08-Oct-2020
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
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.
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
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
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
14 Notes and answers.notebook
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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