Question

The radii of two concentric circles are 35cm and 14cm .find the area of the circular ring

Answer 1

R = 35 cm and r = 14 cm

where R is radius of larger circle

r is radius of smaller circle

Area of the circulating ring =π(R^2 – r^2 )

Answer 2

ANSWER:---------

we know that concentric circles are those circles having the same center but different radius.

given the radii of the two circles 35cm and 14cm respectively.

therefore area of the circular ring = area of the larger circle - area of the smaller circle

= (22/7 * 35 * 35) - (22/7 * 14 * 14)

= (22 * 5 * 35) - (22 * 2 * 14)

= 3850cm^2 - 616cm^2

= 3234cm^2

T!-!ANKS!!