In a circle with a radius of 25cm, a chord lies at the distance at 7 cm from the centre find
.the length of that chord.
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Answer:
Refer the attachment
️️
In the figure, AB is the chord .
AM = BM ( the perpendicular from the centre bisects the chord)
OA = 25cm
OM = 7cm
Now,
By Pythagoras theorem,
Now ,
Chord AB = AM + BM
BM = AM
=> AB = AM + AM
=> AB = 24+24
=> AB = 48 cm
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