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Can someone help in this one please

Can someone help in this one please
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4 votes
Can someone help in this one please

Can someone help in this one please-example-1
User Bartop
by
7.5k points

1 Answer

0 votes

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

User Mhristache
by
8.1k points
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