This Year 9 Pythagoras' theorem quiz has 10 short questions for pupils aged 13-14. Type your answer, check it straight away and read the explanation when you get one wrong.
Year 9 Pythagoras' theorem quiz: the 10 questions
- Legs 6 and 8. Hypotenuse?36 + 64 = 100.
- What do we call the longest side of a right-angled triangle?It is opposite the right angle.
- Square of 13?13 × 13.
- √144?12 × 12.
- Hyp 5, leg 3. Other leg?25 - 9 = 16.
- Is 3, 4, 5 a right-angled triangle? (yes or no)9 + 16 = 25.
- Diagonal of 6 by 8 rectangle?√100.
- Complete: 7, 24, ... is a Pythagorean triple.49 + 576 = 625.
- √2 to 3 s.f.?1.4142...
- Distance from (0,0) to (5,12)?25 + 144 = 169.
How to use this Year 9 Pythagoras' theorem quiz
First, answer every question without a calculator unless the question says so. Then check your answer and read the short explanation. If you get fewer than 7 right, revise the Pythagoras' theorem lesson and try again later. After that, try the multiple choice questions or the Pythagoras' theorem worksheet.
Finally, take this quiz again before a test, because quick retrieval helps you remember. Moreover, all the pages of this chapter work together, so you can move between them at any time. For example, many pupils read the lesson on Monday, practise on Wednesday and test themselves on Friday.


















