Checking understanding of similarity | Maths | Quizalize & Oak National Academy

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?
- 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.
- $a\text{ }$ 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' ✓