Bell Ringer Name all the sets of numbers to which each real number belongs. #1. -36/4 #2. 8.2 #3. 0.55555… #4. -√81

Don’t Forget Supply check is TOMORROW

Homework Check Section 10.2 #1-13

Homework Check Section 10.2 #1-13

Section 10.3 Triangles R drive > Key > Week 11 > Thursday > 10.3 PowerPoint File > Save As > Math > Week 11 > 10.3 PowerPoint

Vocabulary Line Segment – Part of a line containing two endpoints and all of the points between them Triangle – Formed by three line segments that intersect only at their endpoints Vertex- The point where the segments of a triangle intersect.

Notes

Notes

Example 1 Find Angle Measures

Example 2 Find Angle Measures

Your Turn Practice Finding Angle Measures

Example 3 Use Ratios to Find Angle Measures

Example 4 Use Ratios to Find Angle Measures

Your Turn Practice Using Ratios to Find Angle Measures

Vocabulary Acute Angle – An angle that is less than 90° Obtuse Angle – An angle that is between 90° and180 ° Right Angle – An angle that is equal to 90° Straight Angle – An angle that is equal to 180 °

Angles can be classified by their degree measure Notes Angles can be classified by their degree measure

Example 5 Classify Angles

Example 6 Classify Angles Humans have jaws that can open to about 45°. What type of angle is formed by the jaws of a human?

Your Turn Practice Classifying Angles

Vocabulary Scalene Triangle – A triangle with no congruent sides Isosceles Triangle – A triangle with at least 2 Equilateral Triangle – A triangle with all sides congruent Congruent Sides - Sides that have the same length

Triangles can be classified by their angles. Notes Triangles can be classified by their angles.

Notes Triangles can also be classified by their sides

Example 7 Classify Triangles

Example 8 Classify Triangles

Your Turn Practice Classifying Triangles

Section 10.2 #1-17

Section 10.2 #1-17

Section 10.2 #1-17