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If the circumference of a circle incr...

If the circumference of a circle increases form `4pi` to `8pi` , what change occurs in its area? (a) It is halved. (b) It doubles. (c) It triples. (d) It quadruples.

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RS AGGARWAL-AREA-All Questions
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  15. A cow is tethered at point A by a rope. Neither the rope nor the cow i...

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  16. Two identical circles intersect so that their centers, and the points,...

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  17. A one-rupee coin is placed on a plain paper. How many coins of the ...

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