Question

Two concentric circles having the radius 14m and 21m.Find the

area between two circles​

Answer 1

Answer:

Step-by-step explanation:

area between two circles = area of bigger circle - area of smaller circles

area between two circles =π(R²-r²) m²

area between two circles =π(21²-14²)m²

area between two circles =π(441-196) m²

area between two circles =π(245)m²

area between two circles =770m²

Answer 2

Answer:

hope this helps u....

the area between two circle is 770

Step-by-step explanation:

area of first circle =$\pi$r^2

                             =22/7 *14*14

                              =616

area of second circle=$\pi$R^2

                                  =22/7*21*21

                                   =1386

area between circles =1386-616

                                  =770