Chord properties

Intros
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Lessons
    1. What is a chord?
    2. What is a tangent?
  2. What are the properties of a chord?
Examples
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Lessons
  1. If AC is 4 cm and BD is 15 cm, what is the diameter of the circle?
    using chord properties to determine diameter
  2. Zoe wants to set up her round dining table by putting a candle in the centre of it. How can she do that by using a tangent? Explain your answer with a diagram.
  3. Below is a segment of a circle, and A is the center of the circle. The radius is 15 cm, BC is 7.5 cm, and DE is 24 cm.
    Using chord properties to find radius and other unknowns
    Determine.
    1. ∠\angleCED
    2. CE
    3. BE