Question

A circular clock face of radius 7 cm has a frame of width 7 mm around. find the area of the frame.

Answer 1

Thita/360 x 22/7 x r sq.

Answer 2

hiii!!!

here's ur answer...

given the radius of of the circular clock face is 7cm.

area of the clock face = πr²

= 22/7×7×7

= 22×7

= 154cm²

radius of the clock along with the frame = 7.7cm

area of the clock along with the frame = πr²

= 22/7×7.7×7.7

= 1304.38/7

= 184.34cm²

hence area of the frame = 184.38-154

= 32.34cm²

hope this helps..!