Turn on thread page Beta
    • Thread Starter

    Hi guys,
    I am stuck with my IB Maths IA for SL and I don't know what to do. I was thinking about doing calculus such as finding the volume of tori, but is it too easy? I don't really know how to apply and relate it more to maths, so that I could write more and maybe get a better grade. May someone help me please?

    Thank you!!

    You don't need to do any calculus. A torus is basically a curved cyliner, and you find the volume the same way. You find the area of the base of the cylinder (the cross section of the torus) and times it by the length (the diameter of the torus which goes through the middle of the structure).
    So if you let r be the radius of the cross section and R be the radius of the torus itself (from the centre of mass to the middle of a cross-section). Then it would be:
     \pi \times r^2 (the cross section) times by  2 \times \pi \times R (the diameter of the torus)
The home of Results and Clearing


people online now


students helped last year

University open days

  1. Bournemouth University
    Clearing Open Day Undergraduate
    Fri, 17 Aug '18
  2. University of Bolton
    Undergraduate Open Day Undergraduate
    Fri, 17 Aug '18
  3. Bishop Grosseteste University
    All Courses Undergraduate
    Fri, 17 Aug '18
A-level students - how do you feel about your results?
Useful resources

Make your revision easier


Maths Forum posting guidelines

Not sure where to post? Read the updated guidelines here


How to use LaTex

Writing equations the easy way

Student revising

Study habits of A* students

Top tips from students who have already aced their exams

Study Planner

Create your own Study Planner

Never miss a deadline again

Polling station sign

Thinking about a maths degree?

Chat with other maths applicants

Can you help? Study help unanswered threads

Groups associated with this forum:

View associated groups

The Student Room, Get Revising and Marked by Teachers are trading names of The Student Room Group Ltd.

Register Number: 04666380 (England and Wales), VAT No. 806 8067 22 Registered Office: International House, Queens Road, Brighton, BN1 3XE

Write a reply...
Reputation gems: You get these gems as you gain rep from other members for making good contributions and giving helpful advice.