What is the area of the circulating ring in sq. cm?

If the radii of 2 concentric circles are 15 cm and 13 cm respectively, then the area of the circulating ring in sq. cm is:

  1. 176
  2. 178
  3. 180
  4. 200
Anurag Mishra Professor Asked on 3rd March 2016 in Maths.
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  • 1 Answer(s)

    Answer: (1) 176 sq. cm 

    Anurag Mishra Professor Answered on 4th March 2016.
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