Formula deep page
Cylinder
CSA=2πrh | TSA=2πr(r+h) | V=πr²h
This formula belongs to the chapter "Surface Areas and Volumes" in Class 9 Mathematics. Use it after identifying the right variables, matching the chapter context, and writing the substitution clearly.
How to use it
- Identify the quantity you need to find.
- Check the related variables and units from the question.
- Substitute values carefully into the formula.
- Simplify step by step and write the final statement.
Worked cue
r=7cm, h=10cm: V=π×49×10≈1539.4 cm³
Rule note: π ≈ 22/7 ≈ 3.14159