Missing angles | Maths | Quizalize & Oak National Academy

Starter quiz

In which cases are the angles always equal to each other?
- adjacent angles on a straight line
- alternate angles on parallel lines ✓
- co-interior angles on parallel lines
- corresponding angles on parallel lines ✓
- vertically opposite angles ✓
Co-interior angles on parallel lines sum to ______°.
- '180' ✓
Which angle is 97°?
- ∠BCD ✓
- ∠CBD
- ∠CDB
- ∠DBC
Match each shape with the sum of its interior angles.
- decagon
  
  ⇔
  
  1440° ✓
- heptagon
  
  ⇔
  
  900° ✓
- hexagon
  
  ⇔
  
  720° ✓
- nonagon
  
  ⇔
  
  1260° ✓
- octagon
  
  ⇔
  
  1080° ✓
- pentagon
  
  ⇔
  
  540° ✓
∠ACE = ∠FEC because ______.
- they are alternate angles on the parallel lines ✓
- they are corresponding angles on the parallel lines
- they are vertically opposite angles
Which angle is co-interior to ∠ACE?
- ∠BCA
- ∠CEH ✓
- ∠ECD
- ∠FEC
- ∠GEH