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- Length of chord which is at distance of 3 cm. from the centre of circle of radius 5 cm. is :
. Length of chord which is at distance of 3 cm. from the centre of circle of radius 5 cm. is :
A. 4cm.
B. 6 cm.
C. 8cm.
D. 10cm.
Best Answer
Answer ||| C
Solution |||
Radius of circle = 5cm
AO = 3cm
Consider triangle AOC , we can write by applying pythhogerous theorem:
OC = 4cm
Therefore , length of chord = 4 + 4 = 8cm ; option C
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