Converse of Pythagoras theorem

Converse of Pythagoras theorem Quiz

IB MYP Maths Extended: Quiz

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5 questions, one answer each

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1. Which set of side lengths forms a right-angled triangle?
- A. 4, 5, 6
- B. 5, 12, 13
- C. 6, 7, 9
- D. 7, 8, 12
2. A triangle has sides $6$ cm, $7$ cm and $10$ cm. What type of triangle is it?
- A. acute-angled
- B. right-angled
- C. obtuse-angled
- D. it is not a triangle
3. A triangle has sides $6$ cm, $8$ cm and $9$ cm. What type of triangle is it?
- A. acute-angled
- B. right-angled
- C. obtuse-angled
- D. it is not a triangle
4. Which set of lengths cannot be the sides of a triangle?
- A. 3, 4, 5
- B. 5, 5, 9
- C. 6, 8, 10
- D. 2, 3, 6
5. A triangle has sides $13$ cm, $13$ cm and $10$ cm. How can it be described?
- A. obtuse-angled and isosceles
- B. acute-angled and isosceles
- C. right-angled and isosceles
- D. acute-angled and scalene