Starter quiz

  • Two shapes are ______ if the only difference between them is their size. Their side lengths are in the same proportions.
    • 'similar' ✓
  • The __________ is the multiplier between similar shapes that describes how large one shape is compared to the other.
    • centre of enlargement
    • line of reflection
    • scale factor  ✓
    • vector
  • Which rectangle is a correct enlargement of of rectangle R?
    Which rectangle is a correct enlargement of of rectangle R?
    • A
    • B  ✓
    • C
  • Triangle A has been enlarged by a scale factor of 2 to get triangle B. Match each unknown length from triangle B with its size.
    Triangle A has been enlarged by a scale factor of 2 to get triangle B. Match each unknown length from triangle B with its size.
    • a\text{ } cm
      ⇔
      6 cm ✓
    • b\text{ } cm
      ⇔
      8 cm ✓
    • c\text{ } cm
      ⇔
      10 cm ✓
  • A square has length 8 cm. It is enlarged by a scale factor of 1\over{2}. The side length of its image is ______ cm.
    • '4' ✓
  • Each angle in an equilateral triangle is 60°. If an equilateral triangle is enlarged by a scale factor of 2, each of its angles will be ______°.
    • '60' ✓
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