Transcript 1-5 Angle Pair Relationships Day 2

Warm up
1. Solve 3x + 9 =-30
2. Simplify the expression 9x +
2y, where x = -5 and y = 2.
3. 8b + 3c – 4f , let b = -4, c= 3 and f = 6
4. Find the midpoint of the line
segment containing the points
(0, 7) and (4, 6).
5. I am a triangle with angle
measures 23, 104 and 53
degrees, what am I?
Today’s Objective
 TSWBAT name and identify angle relationships in order to
solve for angle measurements.
 Homework: Riddle me this WS and 1.5 practice WS
 Homework and notes available at:
https://lrhssavila.wikispaces.hcpss.org
To identify basic shapes and figures in
Geometry
 Warm up
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Homework: Riddle me this WS and 1.5 practice WS
Anticipatory Set
Practice Example 1-5
Closure
Homework Review
To identify basic shapes and figures in
Geometry
 Warm up
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Homework: Pg 38 #1-53 Every Other Odd √
Anticipatory Set
Practice Example 1-5
Closure
Anticipatory Set
 Let’s review our vocabulary from yesterday.
Vocabulary
1.
2.
3.
4.
5.
Complementary Angles
Supplementary Angles
Adjacent Angles
Linear Pair
Vertical Angles
To identify basic shapes and figures in
Geometry
 Warm up
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√
Homework: Riddle me this WS and 1.5 practice WS√
Anticipatory Set √
Practice Example 1-5
Closure
EXAMPLE 1
Identify complements and supplements
In the figure, name a pair of
complementary angles, a pair of
supplementary angles, and a pair of
adjacent angles.
EXAMPLE 2
a.
Given that
find m 2.
Find measures of a complement and a supplement
1 is a complement of
2 and m
1 = 68°,
EXAMPLE 3
Find angle measures
Sports
When viewed from the side, the frame of a ball-return net forms a pair
of supplementary angles with the ground. Find m BCE and m ECD.
EXAMPLE 4
Identify angle pairs
Identify all of the linear pairs and all of the vertical angles in
the figure at the right.
EXAMPLE 5
Find angle measures in a linear pair
ALGEBRA
Two angles form a linear pair. The measure of one angle is 5
times the measure of the other. Find the measure of each angle.
To identify basic shapes and figures in
Geometry
 Warm up




√
Homework: Riddle me this WS and 1.5 practice WS√
Anticipatory Set √
Practice Example 1-5 √
Closure
Closure
How do we identify Complimentary and
Supplementary angles?