Geo April 7, 2009

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Geo April 7, 2009

  1. 1. April 7, 2009 Points F and G are the endpoints of a line  segment and FG = 30.  Points H and I lie  3 1 on FG such that FH is      of FG and FI is       5 3 of FG.  What is the length of HI ? 30 (A) 4 (B) 8 3. 5 30 18 (C) 10 10 1. (D) 18 3 30 (E) 20 G F H I
  2. 2. Segments and Circles 1. Intersecting Chords 2. Secants with same endpoint 3. Secant and Tangent  with same endpoint
  3. 3. Intersecting Chords S The product of the parts F of the chords are equal. Z FZ  ZM = AZ  ZS A M
  4. 4. Secants with the same endpoint J The products of the entire secant and the part outside are equal. P VR  VB = VJ  VP V R B
  5. 5. Secant and Tangent with the same endpoint L The same as the two secants ; however, for  the tangent, you multiply it by itself  (the outside is the entire length) D K W DL  DL = DK  DW
  6. 6. HW: 10.6 Practice A Worksheet #1­9, 10­18 (even)

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