Annulus approximations

Author:David Taub

This activity allows you to explore the accuracy of a common method for approximating the area of an annulus. Can you figure out where the method comes from? When is it a good enough approximation?

New Resources

Ogee Arch - Construction
JLA Eri Chan
အခြေခံ data အခေါ်အဝေါ်များ
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Curves

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Equation of a parabola in factorised form
Justin's Rotations
Unit 2 Lesson 3
Spreadsheet Question

Discover Topics

Subtraction
Centroid or Barycenter
Quadrilaterals
Pythagoras or Pythagorean Theorem
Translation