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
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- 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.
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- 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
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- Would a triangle ABC with sides AB = 16cm, BC = 10cm, AC = 21cm be similar to the one shown in the diagram?
- Yes
- No ✓
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- 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
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- 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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