Circles with different radii 1

Observe the given picture

What do you observe?

• The radii of circles are in A.P.

Frame questions based on this picture

Q1 Three circle of radii 2cm, 4cm and 6 cm are drawn. Find the ratio of their circumference.--Rashkath 16:17, 8 October 2011 (UTC)

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Q2 Three circle of radii 2cm, 4cm and 6 cm are drawn. Find the ratio of their areas.--Rashkath 16:17, 8 October 2011 (UTC)

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Q3 Observe the given figure and check whether the radii of circles are in Arithmetic Progression or not? If they are in A.P. then what would be the radius of 6th circle in the sequence?--Rashkath 16:19, 8 October 2011 (UTC)

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