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Maths
Trigonometry

Starter quiz

  • In a right triangle, if the hypotenuse is 75 cm and a second side is 60 cm, what is the length of the third side? (Use a calculator to help you.)
    • 50 cm
    • 45 cm  ✓
    • 54 cm
  • Which of the following statements is true for these triangles?
    Which of the following statements is true for these triangles?
    • The triangles are similar.
    • The triangles are not similar.  ✓
    • It is not possible to know whether the triangles are similar or not.
  • In a right triangle, if the shortest sides are 7.5 cm and 18 cm, what is the length of the hypotenuse? (Use a calculator to help you.)
    • 19.5 cm  ✓
    • 18.5 cm
    • 20.5 cm
  • Would a triangle ABC with sides AB = 16cm, BC = 10cm, AC = 21cm be similar to the one shown in the diagram?
    Would a triangle ABC with sides AB = 16cm, BC = 10cm, AC = 21cm be similar to the one shown in the diagram?
    • Yes
    • No  ✓
  • Would a triangle ABC with sides AB = 12 cm, BC = 9 cm, AC = 15 cm be similar to the one shown in the diagram?
    Would a triangle ABC with sides AB = 12 cm, BC = 9 cm, AC = 15 cm be similar to the one shown in the diagram?
    • Yes  ✓
    • No
  • For this pair of triangles, can you determine whether they are similar without using side lengths?
    For this pair of triangles, can you determine whether they are similar without using side lengths?
    • Yes, because their three angles correspond.  ✓
    • No because you only know two angles.
    • No, because you always need a side and two angles.
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