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→Arc length and area: : Changed the theta in the text to match with the theta in the formulae |
→Arc length and area: added an example |
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:<math>a\approx \tfrac{\pi R^2}{2}-(R+\tfrac{c}{2})(R-h)</math> for h>.75''R''
As an example, the area is one quarter the circle when ''θ'' ~ 2.31 radians (132.3°) corresponding to a height of ~59.6% and a chord length of ~183% of the radius.
=== Etc. ===
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