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.

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Presentation transcript:

Warm up 1. Solve 3x + 9 = Simplify the expression 9x + 2y, where x = -5 and y = b + 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:

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

Homework Review

To identify basic shapes and figures in Geometry Warm up√ 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. Complementary Angles 2. Supplementary Angles 3. Adjacent Angles 4. Linear Pair 5. Vertical Angles

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

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 Find measures of a complement and a supplement a. Given that 1 is a complement of 2 and m 1 = 68°, find m 2.

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 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. ALGEBRA

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

How do we identify Complimentary and Supplementary angles?