a chord of length 16 cm is drawn in a circle of a diameter 20 cm Calculate it’s distance from the centre of the circ

2 thoughts on “a chord of length 16 cm is drawn in a circle of a diameter 20 cm Calculate it’s distance from the centre of the circ”

1. Answer:

   Centre =O

   Chord=AB

   Length of Chord=16cm

   Radius of circle =20/2=10cm(OA)

   Draw a perpendicular on Chord

   Chord divided two equal parts

   AM and MB(16/2=8)

   In triangle ;OAM is a Right angle triagle.

   By pythagorouse theorem;

   OA^2=AM^2+OM^2

   (10)^2=8^2+(OM)^2

   100-64=OM^2

   36=(OM)^2

   6^2=(OM)^2

   OM=6cm

   distance from the centre of the circle =6cm

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2. Answer:

   10 cm because radius is half of diameter

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