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RRB Group D Model Paper 7 with solutions
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© examsnet.com
Question : 43
Total: 100
A chord of length 24 cm is at a distance of 5 cm from the centre of a circle. The length of the chord of the same circle which is at a distance of 12 cm from the centre is_______.
12 cm
11 cm
17 cm
10 cm
Validate
Solution:
(4) Let the length of chord be x cm. Since both chords are in the same circle, then the product of perpendicular distance of chord from the center and chord length will always be same. Therefore,
24 × 5 = 12 ×
x
⇒ x = 10 cm
© examsnet.com
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