1. 8.6 Angles Vocabulary (PRE-Req)
Points: an exact location, ex. Point P
Lines: is straight; no curves; with no end; continual
Line Names: by the endpoints, point P and point Q ex. PQ
Ray: a line with an endpoint that extends infinitely in one direction
Perpendicular Lines to cross and create 90° angles
Intersecting lines: two crossing lines that are divided into 2 equal parts
Vertex: the point of intersection of 2 or more line segments, point in the middle
Congruent – have the same measure

2. 8.6 Angles Vocabulary (PRE-Req)
Acute: an angle that is less than 90
Obtuse: an angle that is greater than 90 but less than 180
Right: an angle that is 90 exactly
Straight: an angle that is 180 exactly
Reflex: an angle that measures more than 180º but less than 360º
 Protractor: tool used to identify degree measurement of the angle

3. 8.6 Angles Vocabulary (Naming)
Angle: A shape, formed by two lines or rays diverging from common point (the vertex). Symbol
Angle Names: We name angles in three different ways
Option 1: 3 capital letters Ex. ABC or DEF
Option 2: The middle letter is called the vertex of the angle. Ex. B or E
Option 3: The number in the middle of the angle Ex. 1

4. 8.6 Angles Vocabulary (new)
Complementary: two angles are complementary if the sum of their measures is 90˚
Supplementary: two angles are supplementary if the sum of their measures is 180˚
Vertical: opposite angles formed by the intersection of two lines. Vertical angles are congruent. Walk through the vertex to get to the other angle.
Adjacent- left and right of the angle; share a common side and common vertex. Walk through the common side to get to the other angle
Non-Adjacent: separate angles that do not touch, do not have a common side and do not have a common vertex.
Pair of angles – only 2 angles being added together

5. Video Lesson Show work on whiteboard- marker in cup Click on all links
Complementary: sum of two angles is 90 degrees and Supplementary: sum of two angles is 180 degrees
Find complement
Vertical: Commute through the vertex (point in the middle)
Adjacent: Commute through the line
Angle Relationships (find x value)

6. Reminders
Absent people check folder- complete missing work within 5 school days or becomes a 0.
Reminder & HW
Quiz of V and SA with Scaling on
MAP test Tues. & Wed &
NEW NOTES – Binder for 3rd 9 weeks (name)

7. Today’s Objective
Given an angle, TLW verify by measuring and describing among obtuse angles, acute angles, right angles, and reflex angles with at least 80% accuracy.
Given an angle, TLW verify by measuring and describing among vertical angles, adjacent angles, supplementary angles, and complementary angles with at least 80% accuracy.

8. Follow the steps below 2.3.17 Warm-UP: Vocabulary
Old HW- BTB pg #1-6
New HW- BTB pg 202 #1-11
Seg 1: Introduction to 8.6 Angles/Blue Notes
Seg 2: Most Missed Questions Quiz
Seg 3: Complete vocabulary and listen to Video lesson on Angles
Closure: Explain one Angle you learned today.

9. 3rd

10. 4th

11. 5th