What is the length CD if AB = 10 cm? - ProProfs Discuss
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What is the length CD if AB = 10 cm?
Give two concentric circles with center O. A line cut the circles at A, B, C, D, respectively.



A. 5 cm
B. 7.5 cm
C. 10 cm
D. None of these

This question is part of Circles
Asked by Jagran josh, Last updated: Jan 21, 2020

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2 Answers

John Adney

John Adney

Answered Mar 14, 2017

Perpendicular drawn from centre of chord bisects the chord hence am = md
also bm=mc
subtracting
ab=cd
hence cd=10cm
 

John Smith

John Smith

Answered Dec 30, 2016

7.5 cm
 1

John Adney

No it is 10 centimeters

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