Lesson 3-7: Secants and Tangents and Angle Measure - PowerPoint PPT Presentation

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Lesson 3-7: Secants and Tangents and Angle Measure

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Lesson 3-7: Secants and Tangents and Angle Measure Mrs. Mongold Advanced Math Topics Secant and Tangent Interior angle = intercepted arc Two Secants: Interior ... – PowerPoint PPT presentation

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Title: Lesson 3-7: Secants and Tangents and Angle Measure


1
Lesson 3-7 Secants and Tangents and Angle Measure
  • Mrs. Mongold
  • Advanced Math Topics

2
  • Secant and Tangent
  • Interior angle ½ intercepted arc
  • Two Secants
  • Interior angle ½ (sum of intercepted arcs)
  • Two Secants
  • Exterior angle ½ (far arc close arc)
  • Two Tangents
  • Exterior angle ½ (far arc close arc)

3
2 Secants/chords Angle 1 ½ (arc AD arc
CB) Angle 2 ½ (arc AC arc DB)
B
2
1
A
D
4
E
Secant ED intersects tangent FC at a point of
tangency (point F) Angle 1 ½ arc FE Angle 2
arc EA arc FB
1
F
B
A
2
C
5
Find angle x
6
Find angle x
7
Find x (arc JK)
8
Find angle RPS
9
Find arc BD
10
Find angle FGI
11
Find arc BC
12
Find x
13
Find arc ZYX
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