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Warm UP. In your own words, define: 1) intercepted arc 2) secant 3) chord. Objective. SWBAT use theorems regarding angles of circles to find missing measurements. Homework. Cumulative Review 4 due this Friday at the beginning of class. Summary Worksheet.

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Presentation Transcript
Warm up
Warm UP

  • In your own words, define:

    • 1) intercepted arc

    • 2) secant

    • 3) chord


Objective
Objective

  • SWBAT use theorems regarding angles of circles to find missing measurements.


Homework
Homework

  • Cumulative Review 4 due this Friday at the beginning of class


Summary worksheet
Summary Worksheet

  • Let’s fill out the summary worksheet…

  • It is coming your way on the next slide.


Summary worksheet1
Summary Worksheet

  • 1) Central angle mAVC = mAC

  • 2) Inscribed angle mAVC = (1/2)mAC

  • 3) Vertex-on angle (acute) mAVC = (1/2)mAV


Summary worksheet2
Summary Worksheet

  • 4) Vertex-on angle (obtuse) mAVC = (1/2)mADV

  • 5) Vertex-in angle mAVC = (1/2)(mAC +mBD)

  • 6) Vertex-out angle (secant) mAVC = (1/2)(mBD –mAC)


Summary worksheet3
Summary Worksheet

  • 7) Vertex-out angle (sec/tan) mAVC = (1/2)(mBC –mAC)

  • 8) Vertex-out angle (tangent) mAVC = (1/2)(mABC – mAC


Application
Application

  • Use your summary worksheet to get through as much as possible of Practice 12-5 Example Exercises (#1, 3, 5, 7 only)


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