Slide 1

Warm UpDraw each figure.

1. line segment2. line3. ray4. planeClassifying Angles1Module 11Essential ?How can you use angles to identify lines, and find missing measures of angles?StandardMCC7.G.5: Use facts about supplementary, complementary, vertical, and adjacent angels in multi-step problem to write and solve simple equations for an unknown angle in a figure.Classifying Angles2You can name this angle ABC, CBA, B, or 1. Reading MathA B C1Classifying Angles3

Glue in notebook.Classifying Angles

Classifying Angles

Classifying Angles

Classifying Angles

Classifying Angles

Classifying AnglesLesson Quiz: Part IIUse the diagram to tell whether the angles are complementary, supplementary, or neither.

3. AZB and BZCneither4. BZC and CZDcomplementary5. Angles M and N are supplementary. If mM is 117, what is mN?63

Classifying Angles10

When naming an angle. The vertex always goes in the center.Classifying AnglesAngles A and B are complementary. If mA is 56, what is the mB?Additional Example 3: Finding Angle MeasuresSince A and B are complementary, mA + mB = 90. mA + mB = 90 56 + mB = 90 56 56 mB = 34 Substitute 56 for mA.Subtract 56 from both sides.The measure of B = 34. Classifying Angles12Angles P and Q are supplementary. If mP is 32, what is the mQ?Check It Out: Example 3Since P and Q are supplementary, mP + mQ = 180. mP + mQ = 180 32 + mQ = 180 32 32 mQ = 148 Substitute 32 for mP.Subtract 32 from both sides..The measure of Q = 148. Classifying Angles13

Classifying Angles

Classifying Angles

Homework:WB Pg. 275Classifying Angles