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| Math Central | Quandaries & Queries |
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Question from Raj, a student: AB and CD are two chords which are in the same side of the circle.The length of AB=12 and CD= 24.if the distance between them is 4 then find their radius. Pls help me I just believe on you guys I am having my exam after 3 days |
Hi Raj,
I drew a diagram.
Use Pythagoras' theorem and triangle $DEC$ to write a realtionship between $r$ and $x.$
Use Pythagoras' theorem and triangle $ABC$ to write a realtionship between $r$ and $ x.$
Solve for $x.$
Penny
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