Learning Resources

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Outcomes

In this lesson you will

  • Discover the properties of a tangent and tangent segments drawn to a circle from an external point.

By the end of this section you should be able to:

  • Apply inductive reasoning to make conjectures in geometric situations.
  • Investigate, and make and prove conjectures associated with angle relationships in circles.
  • Write proofs using various axiomatic systems and assess the validity of deductive arguments.
  • Investigate, and make and prove conjectures associated with tangent properties of circles.
  • Apply properties of circles
  • Solve problems involving the equations and characteristics of circles and ellipses.
  • Develop and apply formulas for distance and midpoint.

Prerequisites

To be successful in this lesson, it would be helpful to know the following:

  • How to measure angles with a protractor.
  • The angle and arc relationships developed so far in this unit.
  • The properties of an isosceles triangle.
  • That the sum of the interior angles of a triangle is 180°.