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

Starter quiz

Match each transformation to its description.
- enlargement
  
  ⇔
  
  changing the size of an object while maintaining the same proportions ✓
- reflection
  
  ⇔
  
  flipping an object over a fixed line ✓
- rotation
  
  ⇔
  
  turning an object by a fixed amount and around a fixed point ✓
- translation
  
  ⇔
  
  moving every point of an object by the same distance and direction ✓
If one shape can fit exactly on top of another using rotation, reflection or translation, then the shapes are __________.
- alternate
- congruent ✓
- corresponding
- supplementary
Which properties of a triangle would remain invariant when it is rotated 90°.
- The lengths of its edges. ✓
- The orientation of the shape.
- The positions of its edges.
- The positions of its vertices.
- The size of its angles. ✓
A square with length 5 cm is enlarged by a scale factor of 1. The length of square in the image is ______ cm.
- '5' ✓
Which of the triangles can NOT be obtained by reflecting triangle T?
- A
- B
- C ✓
- D
- E
Triangle A has been reflected over the line of reflection to create triangle B. Match each unknown length from triangle B with its size.
- $a \text{ cm}$
  
  ⇔
  
  4 cm ✓
- $b\text{ cm}$
  
  ⇔
  
  3 cm ✓
- $c\text{ cm}$
  
  ⇔
  
  5 cm ✓