Squares & Rectangles
Help and tips
For a simple rectangle, just use the length and width with the thickness.
For irregular, basically square areas,
- Breakdown the area into a number of simple rectangular areas.
- Workout the volume for each area separately.
- And finally add the separate volumes together.
For a simple circle, just use the radius with the thickness.
For a ring:
- Use the calculator to work out the volume for both the inner and outer circles.
- Take the volume for the inner circle away from the volume for the outer circle and you will be left with the
volume of the ring.
For part of a circle, calculate the volume for the full circle and then adjust for the part required – i.e.
halve for a half circle, quarter for a quarter circle.
For triangular shapes, work out the height and base of the triangle and use with the thickness in the calculator left.
The ‘height’ is the distance between an angle and the opposite side where a line meets the side at right angles. The side it meets is the ‘base’.
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