Difference between revisions of "Common internal tangent line"
(New page: '''Common Internal Tangent:''' A tangent that intersects the segment joining the centers of two circles.) |
m (fixed formatting typo) |
||
| (3 intermediate revisions by 2 users not shown) | |||
| Line 1: | Line 1: | ||
| − | ''' | + | A '''common internal [[tangent]]''' of two [[circle]]s is a tangent of both circles that intersects the segment joining the centers of two circles. |
| − | + | ||
| + | == Problems == | ||
| + | === Introductory === | ||
| + | *[[Circle]]s with [[center]]s <math>A</math> and <math>B</math> have [[radius |radii]] 3 and 8, respectively. A [[common internal tangent line | common internal tangent]] [[intersect]]s the circles at <math>C</math> and <math>D</math>, respectively. [[Line]]s <math>AB</math> and <math>CD</math> intersect at <math>E</math>, and <math>AE=5</math>. What is <math>CD</math>? <div style="text-align:right;">([[2006 AMC 12A Problems/Problem 16|2006 AMC 12A, #16]])</div> | ||
| + | |||
| + | [[Image:2006_AMC12A-16.png|thumb|200px]] | ||
| + | |||
| + | |||
| + | {{stub}} | ||
Latest revision as of 11:09, 20 July 2024
A common internal tangent of two circles is a tangent of both circles that intersects the segment joining the centers of two circles.
Problems
Introductory
- Circles with centers
and 
have radii 3 and 8, respectively. A common internal tangent intersects the circles at 
and 
, respectively. Lines 
and 
intersect at 
, and 
. What is ?
and 
have 
and 
, respectively. 
and 
intersect at 
, and 
. What is 
This article is a stub. Help us out by expanding it.
