If the radii of two concentric circles are 15 cm and 13 cm respectively, then the area of the circulating ring in sq. cm will be

If the radii of two concentric circles are 15 cm and 13 cm respectivel

1.	If the radii of two concentric circles are 15 cm and 13 cm respectively, then the area of the circulating ring in sq. cm will be
A.	176
B.	178
C.	180
D.	200
Answer» B. 178

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If the radii of two concentric circles are 15 cm and 13 cm respectively, then the area of the circulating ring in sq. cm will be

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