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Chapter 7 Review

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  • What is a diameter?
    a line segment from two points on the circle that passes through the center point.
  • What is an obtuse angle?
    An angle that is greater than a right angle.
  • How many angles does an octagon have?
    8
  • What is the diameter for this figure?
    --- CD or ----DC
  • How many vertices does a triangle have?
    3
  • What is a ray?
    A line that has 1 end point and the other end goes on forever
  • What is line?
    A line that goes on and on in both directions.
  • Write an equation and solve. Find the area of a figure that is 10 feet length and 5 feet wideth?
    5x10= 50 square feet (50 sq ft)
  • Write an equation and solve. What is the perimeter of a figure that is 6 feet long and 10 feet wide?
    6+6+10+10= 32 feet
  • What is a vertex?
    The corner of a figurre.
  • If the diameter is 10 inches how long is the radius?
    5 inches
  • What are the radii for this figure?
    ----XR, ----XC, ---XD
  • How do you write a line segment XY?
    ----XY or ----YX
  • How do you name a line that has points D C on it?
    <---> DC or <---> CD
  • If the radius is 6 inches how big is the diameter?
    12 inches
  • How many sides does a pentagon have?
    5
  • What are congruent figures?
    They are the same size and shape.
  • Name this circle
    X
  • What is a right angle?
    An angle that is 90 degrees and makes a straight line on the bottom and top
  • How do you name a ray that is BC?
    BC--->
  • How many angles does a quadrilateral have?
    4
  • What does it mean when a figure is symmetrical?
    If you divide the figure in half than both parts will match.
  • What is the radius of a circle?
    a line segment from the center point on the circle
  • How many sides does a hexagon have?
    6
  • What is an acute angle?
    An angle that is smaller than a right angle.
  • What 3 ways can you write the angle X Y Z?
    <Y, <XYZ, <ZYX
  • What is a line segment?
    A line that has two end points.
  • What shape is a figure that is 9 feet long and 9 feet wide?
    Square
  • What are 3 ways you can write the angle BCD?
    <BCD, <C,< DCB
  • What makes a figure similar?
    They have the same shape but different size.
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