If L is the line containing the centers of two circles, intersections are on opposite sides of L ...

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If L is the line containing the centers of two circles, intersections are on opposite sides of L



Announcing the arrival of Valued Associate #679: Cesar Manara
Planned maintenance scheduled April 23, 2019 at 23:30 UTC (7:30pm US/Eastern)The number of the circles which are tangent to two circles and to a lineThree mutually-tangent circles have centers at given distances from each other; find each radius, and find the area between the circlesWithout using angle measure how do I prove two lines are parallel to the same line are parallel to each other?Proving Chords to be Equal using Radical AxisProve that if a ray has its endpoint on a line, where the ray is not on the line, then the points of the ray are on the same side of the line.A little conjecture about a circle related to any triangleAnother beauty hidden in a simple triangle (3)Ceva's Theorem: Proving lines in a specifically constructed triangle intersectProve all points lie on a common circleProving two lines are parallel with intersections and midpoints












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My current professor would like us to prove that the two intersection points of two circles lie on opposite sides of the line L that contains both of their centers. He gave us the hint that we need to use right angles and midpoints to prove it. However I am stuck. It seems straight forward but I am stumped.










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  • $begingroup$
    How is the side of a line defined? (i mean, rigorously)
    $endgroup$
    – FormerMath
    Mar 26 at 1:35
















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$begingroup$


My current professor would like us to prove that the two intersection points of two circles lie on opposite sides of the line L that contains both of their centers. He gave us the hint that we need to use right angles and midpoints to prove it. However I am stuck. It seems straight forward but I am stumped.










share|cite|improve this question









$endgroup$












  • $begingroup$
    How is the side of a line defined? (i mean, rigorously)
    $endgroup$
    – FormerMath
    Mar 26 at 1:35














0












0








0





$begingroup$


My current professor would like us to prove that the two intersection points of two circles lie on opposite sides of the line L that contains both of their centers. He gave us the hint that we need to use right angles and midpoints to prove it. However I am stuck. It seems straight forward but I am stumped.










share|cite|improve this question









$endgroup$




My current professor would like us to prove that the two intersection points of two circles lie on opposite sides of the line L that contains both of their centers. He gave us the hint that we need to use right angles and midpoints to prove it. However I am stuck. It seems straight forward but I am stumped.







proof-writing euclidean-geometry






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asked Mar 26 at 1:12









User83114User83114

1




1












  • $begingroup$
    How is the side of a line defined? (i mean, rigorously)
    $endgroup$
    – FormerMath
    Mar 26 at 1:35


















  • $begingroup$
    How is the side of a line defined? (i mean, rigorously)
    $endgroup$
    – FormerMath
    Mar 26 at 1:35
















$begingroup$
How is the side of a line defined? (i mean, rigorously)
$endgroup$
– FormerMath
Mar 26 at 1:35




$begingroup$
How is the side of a line defined? (i mean, rigorously)
$endgroup$
– FormerMath
Mar 26 at 1:35










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