Real Numbers — Formula Sheet
Telangana Board · Class 9 · Mathematics
3 formulas from Real Numbers (Telangana Board Class 9 Mathematics) on one page, grouped by topic. Part of the Telangana Board Class 9 Mathematics syllabus.
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Formulas and Key Relations
Key relations
Examples
√2 = 1.4142135..., √3 = 1.7320508..
Step-by-step geometric construction method
For √2, construct a right triangle with legs of length 1, hypotenuse = √2.
Key techniques
For 1/√a, multiply by √a/√a.
Full sheet with units and worked examples
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Sources & Official References
Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.
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