Proof Without Words IV

Here’s an infinite geometric series followed by a visual proof:

[Source: Mathematics Magazine, Vol. 62, No. 5]

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Previously on this blog, Proof Without Words I, II, and III.

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One response to “Proof Without Words IV

  1. Reblogged this on Shane Dowd blogging on all things good and commented:
    As they say a picture paints a thousand words

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