Q16 of 31 Page 65

The length of a radius of a circle is 13 cm. and the length of a chord of a circle is 10 cm, the distance of the chord from the centre of the circle is


Given radius = 13cm, PQ = 10cm


⇒ PD


⇒ PD


⇒ PD = 5cm


Using Pythagrus theorem in O PD


⇒ OP2 = OD2 + PD 2


⇒ 132 = OD2 + 52


⇒ OD2 = 169-25


⇒ OD2 = 144


⇒ OD = 12cm

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