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Section 2

1. Section 2

1.39. Explore 3

Mathematics 20-3 Module 5

Section 2: Perspective and Scale

 

Self-Check 2
  1. The dollhouse in the photograph was built using a 1:18 scale. If it had been built to a 1:20 scale, would it be larger or smaller? Justify your answer. Answer

    This is a photo of a young girl playing with a dollhouse.

    Photodisc/Thinkstock


textbook
  1. Turn to page 215 of MathWorks 11 and do questions 1 and 2 of “Build Your Skills.” Answer
  1. In 2011 the Canadian Mint circulated a twenty-dollar silver coin. The width of the coin was 27 mm. Print this enlarged image of a twenty-dollar silver coin, and then answer the following questions.

    This is an image of a 2011 Canadian $20 silver coin.

    Coin image: © 2011 Royal Canadian Mint – All Rights Reserved /

    Image de pièce© 2011 Monnaie royale canadienne – Tous droits réservés


    1. What is the scale of the magnified printed image? Answer

    2. Based on the scale you calculated in question 3.a., what would the length of the word “DOLLARS” on the original coin be? Round to the nearest millimetre. Answer

glossary

It is now time to add new math terms to Mathematics 20-3: Glossary Terms.


 In this lesson the new term you will add is

  • magnification