Scale Factor Day 1

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Scale Factor Day 1

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Questions and Answers
  • 1. 
    The area of a rectangle is 12 inches squared. The rectangle is dilated by a scale factor of ½. What is the area of the new rectangle?
    • A. 

      3 inches squared

    • B. 

      24 inches squared

    • C. 

      48 inches squared

    • D. 

      6 inches squared

  • 2. 
    The perimeter of a triangle is 9 cm.  Thetriangle is dilated by a scale factor of 2. Find the perimeter of the new triangle.
    • A. 

      36 cm

    • B. 

      18 cm

    • C. 

      4.5 cm

    • D. 

      20 cm

  • 3. 
    A rectangle is dilated with a scale factor of 3. Which statement correctly describes the perimeterof the new figure?
    • A. 

      The new perimeter is 1/9 times the original

    • B. 

      The new perimeter is 1/3 times the original

    • C. 

      The new perimeter is 3 times the original

    • D. 

      The new perimeter is 9 times the original

  • 4. 
    A rectangle is dilated with a scale factor of ⅓. Which statement correctly describes the areaof the new figure?
    • A. 

      The new area is 1/9 times the original

    • B. 

      The new area is 1/3 times the original

    • C. 

      The new area is 3 times the original

    • D. 

      The new area is 9 times the original

  • 5. 
    A rectangle has sides of 3 cm and 5 cm.  A similarrectangle is dilated with a scale factor of ½.  Find itslength and width.
    • A. 

      6 cm by 10 cm

    • B. 

      1.5 cm by 2.5 cm

    • C. 

      2 cm by 3 cm

    • D. 

      2 cm by 2.5 cm

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