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In a circular lawn, there is a 16 m long path in the formof a chord. If the path is 6 m away from the centre of thelawn, then the radius of the circular lawn is1) 16 m 2) 6 m 3) 10 m 4) 8 m |
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Answer» Answer- In the given figure, the circle represents the circular lawn and AB represents the 16 m long path. OP=6m⇒ distance of the path from the centre. Using the property that perpendicular from the centre BISECTS the chord, we can SAY that AP=BP=8m. In triangle OPB, using PYTHAGORAS theorem, OB= (OP 2 +PB 2 )
=10m which is the radius. |
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