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Lesson 1

1. Lesson 1

1.2. Are You Ready?

Mathematics 30-3 Module 5

Module 5: Geometry

 

Are You Ready?

 

Complete these questions. If you experience difficulty and need help, visit Refresher or contact your teacher.

  1. Define the term polygon. Answer
  2. Calculate the missing angle measures.
    1. A triangle has angles 56°, 39°, and x. Answer

    2. This is a diagram of an isosceles triangle with the bottom two angles labelled “x” and the top angle labelled “110 degrees.”

      Answer
  3. Use the Pythagorean theorem, a2 + b2 = c2, to calculate the value of the missing side length.

    1. This is a diagram of a right triangle with one leg labelled “6 centimetres” and the hypotenuse labelled “x.” The length of the base is 8 centimetres.

      Answer

    2. This is a diagram of a right triangle with one leg labelled “8 metres,” another leg labelled “x,” and the hypotenuse labelled “17 metres.”

      Answer
  4. Calculate the unknown angle measure, y, and the unknown side, x.

     
    This is a diagram of an isosceles right triangle with the two legs each labelled “5 inches” and the hypotenuse labelled “x.” The angle between the hypotenuse and the base is labelled “y.”

    Answer

If you answered the Are You Ready? questions without difficulty, move to Discover.

 

If you found the Are You Ready? questions difficult, complete Refresher.