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How to name a part of a piechart

What is the correct name for a shape which is like a triangle but with one edge circular, like a slice of cake?

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marked as duplicate by Matt Эллен, z7sg Ѫ, Jasper, RegDwigнt Sep 26 '11 at 10:03

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like a slice of pie, even. :) –  onomatomaniak Sep 26 '11 at 6:25

2 Answers 2

up vote 2 down vote accepted

It's a sector, 'the shape enclosed between an arc and the two radii at either end of that arc' (Oxford Mathematics Study Dictionary).

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+1 note: non-specialist dictionaries list it, too (onelook.com/?w=sector) –  Unreason Sep 26 '11 at 8:41

It's a sector.

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