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Lesson 8

1. Lesson 8

1.3. Discover 2

Mathematics 20-2 M2 Lesson 8

Module 2: Logic and Geometry

 
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Pretend you are designing a logo for a T-shirt that will have two parallel lines on it. How could you construct two parallel lines on the design for the logo using a compass and a ruler or a protractor and a ruler? Explain the strategy you used and why you chose that method. Verify that the lines you created are parallel.

 

This is an illustration of a T-shirt with two parallel lines as part of a logo design. The logo on the shirt reads D squared.
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Working with a partner, discuss your strategy for constructing two parallel lines. In your discussion consider the following questions:

  • How do your strategies compare?
  • Is one strategy more efficient than the other?
  • Do both methods produce parallel lines? If not, how could the strategy be adapted so that the lines constructed are parallel?

This photo is of a straight edge, a compass, and two pencils on a piece of graph paper.

Hemera/Thinkstock