Math Arguments

Problems, Questions, and Puzzles to spark discussion and argument in the maths classroom.

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Item 268

Semicircles 1




Let's talk about perimeter. What do you notice about the perimeter of the big semicircle alone and all of the smaller ones together?

What will happen if we changed this so that all the small semicircles were really, really, really small. Wouldn't that essentially be a straight line?


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Raw Pure Math
T.R.Milne
GEOM

Source: T.R.Milne
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