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| Math Central | Quandaries & Queries |
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Question from Karan, a student: We are given 2 circles with radii 12cm and 3 cm. We have to find AB |
Here is the diagram Karen sent
Karan,
I labeled some points on your diagram.
P is the point where the circles are tangent.
Draw the line segments CP and PD. CPD is a straight line. Do you see why? If you draw one more line Pythagoras will give you the length of the line segment AB.
Penny
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