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11-1 Tangent Lines

# 11-1 Tangent Lines - common tangent – a line or line...

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Tangent Lines Section 11-1

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Theorem 11-1 If a line is tangent to a circle, then it is perpendicular to the radius drawn to the point of tangency. Thm. 11-2 states that the converse is also true
Theorem 11-3 The two segments tangent to a circle from a point outside the circle are congruent. A B DB AB 2245 DB AB 2245

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Unformatted text preview: common tangent – a line or line segment that is tangent to 2 circles in the same plane. Common external tangents Common internal tangents Joke Time How many sides are there to a circle? 2 – inside and outside Why did the geometry teacher leave early on a trip? To catch a plane...
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11-1 Tangent Lines - common tangent – a line or line...

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