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Feliz [49]
3 years ago
13

Can someone help in this one please

Mathematics
1 answer:
salantis [7]3 years ago
8 0

Answer:

As radius is perpendicular to tangent,

By pythagoras theorem :

x² = (x + 9)² - 15²

x² = x² + 18x + 81 - 225

18x = 207

x = 11.5

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