A chord of a circle of radius 7.5 cm with centre O is of length 9 cm find the distance from centre
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The distance from the centre of the circle is d=6 cm
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A chord of a circle of radius 7.5 cm with centre 0 is of length 9 cm. Find its distance from the centre.
In right angled ΔOMP, using phthagoras theorem
OM2 = OP2 - PM2
⇒OM2 = 7.52 - 4.52
⇒OM2 = 56.25 - 20.25
⇒OM2 = 36
∴ OM = √36 = 6 cm
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