Mathematics
The radii of the inner and outer circumferences of a circular-running-track are 63 m and 70 m respectively. Find :
(i) the area of the track
(ii) the difference between the lengths of the two circumferences of the track
Related Questions
The area of a circle is 1386 sq. cm, find its circumference.
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A wire, when bent in the form of a square, encloses an area of 484 cm2. Find :
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