The radius of a circle is 17.0 cm and the length of perpendicular drawn from its centre to a chord is 8.0 cm. Calculate the length of the chord.
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Answer:
Given radius = 17cm
Perpendicular length is 8 cm
Join the line centre to chord end = radius =17
By phyathagorous theorem
Absq = bcsq +ac Sq
17sq= 8sq +xsq
289 = 64 +xsq
289-64=xsq
225 = xsq
X= Root under 225
X=15 cm
Chord length = 2x
2*15 = 30 cm the length of chord is 30 cm
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