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Accelerated Math 1 April 23 rd

Accelerated Math 1 April 23 rd. Turn in Homework (32-34 and 45-47) Pick up protractor WARM-UP: The radius of the circle below is 12in. The measure of the central angle shown is 90 o What is the AREA of the circle What is the area of the SECTOR?

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Accelerated Math 1 April 23 rd

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  1. Accelerated Math 1 April23rd • Turn in Homework (32-34 and 45-47) • Pick up protractor • WARM-UP: The radius of the circle below is 12in. The measure of the central angle shown is 90o • What is the AREA of the circle • What is the area of the SECTOR? • What is the area of the SEGMENT?

  2. Go over homework… page 32-34 4. PW, PX, WX 5. AC, AD, CD 6. 50.24 7. 254.34 8. 3.14 9. 4.19 10. 0.35 11. 17.44 12. 25.12 13. 1.74 14. 4.5 15. 1.73 16. 2.565 17. 41.04 18. 0.36 19. 3.24

  3. Go over homework… p. 45 • center; radii • Linear • Semicircle • Central angle • Segment • Perpendicular • 60 • 110 • 24 • 85 • 6.28 • 37.68 • 5.33 • 6.67 • 9.43 • 10.46 • 942 • 157 • 100 • 32

  4. PROPERTIES OF CIRCLES!!

  5. Page 37 Use a straightedge to draw a chord using the points on the circle above. Use your compass and straightedge to draw the perpendicular bisector of the chord. (THE FISH) What do you notice about the perpendicular bisector? Complete the following: The perpendicular bisector of a chord passes through the ________ of a circle. If a diameter of a circle is perpendicular to the chord, then the diameter _________ the chord and its arc.

  6. Examine the next picture: • The chords are congruent • Congruent chords are the ________________ from the center of the circle.

  7. Page 39

  8. Assignment • TEST WEDNESDAY • HOMEWORK – page 43-44 • Start working on test review – pages 57-59 (Omit the sphere questions)

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