Question

Two concentric circles have radii of 21 cm and 14 cm respectively. find the area of the space between the two circles​?

Answer 1

area of circle 1-area of circle 2 =1386-616=770

Answer 2

Step-by-step explanation:

Radius of larger circle(R) = 21cm Radius of smaller circle (r) = 14cm

Area between two circles = area of larger circle area of smaller circle -

= πR^2- r^2

= 22/7 x21x21

-22/7×14×14

=

1386 - 616

= 770 sq cm