0580/11 May/Jun 2022, Question 21: Irrational Numbers
Cambridge IGCSE Mathematics 0580 · Paper 11 (Core) · Calculator · 1 mark
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The question, in short
State an irrational number whose value lies between 10 and 20.
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Solution · 1 mark
- 1√200 is irrational because 200 is not a square number
- 2√196 = 14 and √225 = 15, so √200 ≈ 14.14 lies between 10 and 20
- 3Example: √200
AnswerAn irrational number between 10 and 20
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Also searched as: 0580/11/M/J/22 · 0580_s22_qp_11 · 0580 s22 11 · question 21.
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