Circle has infinite sides how many sides does a semi circle have?

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SUMMARY

A circle is defined as having an infinite number of sides due to its analogy with regular polygons, where shapes with increasingly many sides converge to form a circle. When considering a semicircle, one can conceptually divide regular polygons in half to determine the number of sides. For instance, half of a triangle retains 3 sides, while half of a square retains 4 sides. Ultimately, the discussion highlights that a semicircle does not possess traditional sides, as it is a curve, but can be viewed through the lens of polygonal division.

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If a circle has infinite sides how many sides does a semi circle have?
i have asked my teachers at school but they have ll said u wud have 2 divide infinity by 2 and +1 which obviously isn't possible cos infinity isn't reli a number is it...

Thanks
 
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A circle is said to have infinitely many "sides" due to the analogy with regular polygons.
(i.e. a triangle has 3, a square 4, and so on)
Eventually you get a shape with so many sides that it "becomes" a circle.
If you want to find how many "sides" a semicircle has, just continue in the same way...
Cut regular polygons in half and work out how many sides they have
(i.e. half a triangle has 3 sides half a square has 4, half a pentagon... etc)

Do you see the idea?

(It's just a bad/weird definition of a circle, since it doesn't really have sides, does it?)
 


Any curve can be looked at as having an infinite number of 'sides' whose length goes to zero, no matter how big.
 


there are two sides to a circle - inside and outside. (posted lest someone begin to take this more seriously than the topic deserves)
 

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