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Chapter One

Chapter One. The 3 undefined terms in Geometry are ______, ______ and ______. The 3 undefined terms in Geometry are point , line and plane. Always, Sometimes or Never?. 2 points are _____ collinear 3 points are _____ coplanar 3 points _____ lie on exactly one plane

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Chapter One

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  1. Chapter One

  2. The 3 undefined terms in Geometry are ______, ______ and ______

  3. The 3 undefined terms in Geometry arepoint, line and plane

  4. Always, Sometimes or Never? 2 points are _____ collinear 3 points are _____ coplanar 3 points _____ lie on exactly one plane 4. 3 points _____ lie on exactly one line

  5. 2 points are always collinear • 3 points are always coplanar • 3 points sometimes lie on exactly one plane • 4. 3 points sometimes lie on exactly one line

  6. If AB = XY then _____ = ______ ~

  7. AB = XY

  8. LN = _____ L N 15 -10

  9. LN = 15 – (-10) = 25

  10. The midpoint of a segment divides it into _____ _____ _____.

  11. The midpoint of a segment divides it intotwo congruent segments. B ~ AM = MB M A

  12. Opposite rays share the same __________.

  13. Opposite rays share the same endpoint. C B A ( BA and BC )

  14. Match The Following: ___ 1. Line AB a. AB ___ 2. Ray AB b. AB ___ 3. Segment AB c. AB ___ 4. Length of d. AB Segment AB

  15. 1- c 2- a 3- d 4- b

  16. ________ lines do not intersect and are coplanar

  17. Parallel linesdo not intersect and are coplanar

  18. _________ lines do not intersect and are NOT coplanar

  19. Skew linesdo not intersect and are NOT coplanar

  20. S N L LN + NS = LS because _________________.

  21. Segment Addition Postulate

  22. Name the following angles:1. 3.2. 4. .

  23. 1. Obtuse 2. Right 3. Acute 4. Straight

  24. Perpendicular lines intersect to form ______ angles.

  25. Perpendicular lines intersect to form right angles: am a m

  26. A 1 2 C B m 1 + m 2 = m ABCbecause______________.

  27. Angle Addition Postulate

  28. Midpoint Formula: B (x2 , y2) M ( _____ , _____ ) A (x1 , y1)

  29. x1 + x2 y1 + y2 , Midpoint = 2 2 average

  30. Find the midpoint of segment AB where A (-6, -5) and B (-4,3)

  31. -6 + -4 -5 + 3 , M = (-5, -1) = 2 2

  32. Find LN: N ( x2 , y2 ) L ( x1 , y1 )

  33. LN = (x1 – x2)2 + (y1 – y2)2 (Distance Formula)

  34. FOR RECTANGLES: • A = ( ____ )( ____ ) • P = 2( ____ ) + 2( ____ )

  35. A = lwP = 2l + 2w Width (w) Length (l)

  36. FOR SQUARES: • A = ( ____ )2

  37. A = s2 side (s)

  38. FOR CIRCLES: A =_______ C = _________

  39. CIRCLES A =  r2 C =2r

  40. Constructions are performed using only a ____________and a _____________.

  41. Constructions are performed using only a compassand a straightedge.

  42. CONSTRUCTIONS TO KNOW!- Copy Segment- Bisect Segment- Copy Angle- Bisect Angle

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