Formula deep page
Cone
l=√(r²+h²) | CSA=πrl | TSA=πr(r+l) | V=⅓πr²h
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=3, h=4: l=5, V=⅓×π×9×4≈37.7 cm³