Question

two concentric circle have radii of 14 cm and7 cm respectively findvthe area of apace between them

Answer 1

Given R = 14cm and r = 7cm.

We know that Area = piR^2 - ^2

                                 = 22/7(196 - 49)

                                = 22/7 * 147

                                = 462.

Answer 2

We know that R=14and r=7
Hence ,
Area of space between 2 concentric circles=
π(R^2-r^2)
=π(196-49)
=π(147)
=462