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Maths CBSE Live product
Class 9 (2026-27)
The World of Numbers
Introduction to irrational numbers
2.
The story of pi (π)
Question:
4
m.
Answer the following:
1.
What does the \(\pi\) symbol represent?
Ratio of area of the circle to its circumference
Ratio of diameter of the circle to its circumference
Ratio of circumference of the circle to its diameter
Ratio of radius of circle to its area
2.
Which among the following is the accurate approximation of \(\pi\)?
4.1416
2.1416
1.1416
3.1416
3.
Which of the following best describes \(\pi\)?
Rational number
Irrational number
Whole number
Natural number
4.
Which Indian mathematician is associated with the infinite series for \(\pi\)?
Bhaskara
Ramanujan
Āryabhaṭa
Mādhava
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