

Introduction to Angles
Presentation
•
Mathematics
•
9th - 10th Grade
•
Hard
Joseph Anderson
FREE Resource
6 Slides • 8 Questions
1
Angles Created By Tangent and Secant Lines

2
Review of Vocabulary
Secant lines intersect a circle in two points
Tangent lines touch a circle at a single point
Chords are segments with end points on the circle.
3
Angle formed by a chord and a tangent line
On the circle!
4
Multiple Choice
What is the measure of angle GED?
104
154
26
No clue
5
Multiple Choice
What is the measure of angle ABD?
No idea
84
68
96
6
Multiple Choice
302
151
29
58
7
Theorem: Tangent lines are perpendicular to radii at the point of tangency.
8
Angles formed by tangent lines
Supplementary to the central angle or the arc it intercepts.
9
Multiple Choice
172
108
126
72
10
Multiple Choice
Find the measure of angle Q.
47
133
156.5
11
Angles formed by two secants
12
Multiple Choice
What is the measure of angle L?
73
74
103
37
13
Multiple Choice
What is the measure of arc MK?
48
84
112
90
14
Multiple Choice
70
116
81
166
Angles Created By Tangent and Secant Lines

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