A one-rupee coin is placed on a plain paper How many...

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A one-rupee coin is placed on a plain paper. How many coins of the same size can be placed round it so that each one touches the centre and adjacent coins ?

A. 3

B. 4

C. 6

D. 7

Answer: Option C

Solution(By Examveda Team)

Area mcq solution image

When 3 congruent circles touch each other externally, the triangle formed with their centers is an equilateral triangle. Hence when a circle is surrounded by identical circles, centers of two consecutive circles make an angle of 60° with the central circle. Thus, six identical circles a surround a circle of equal radius.

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Anwesha Dutta :

3 years ago

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