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Mathematics 28 Online
OpenStudy (anonymous):

Screen shot of problem>>>>

OpenStudy (anonymous):

jimthompson5910 (jim_thompson5910):

notice how the `10` and `x` sides correspond so do `8` and `11` sides

jimthompson5910 (jim_thompson5910):

because the figures are similar, we can form this proportion \[\Large \frac{10}{x} = \frac{8}{11}\] cross multiply then solve for x

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