Question

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

Answer 1

Answer:

area of frame = (area of clock including frame)_(area of clock)

outer radius will be 7+0.7=7.7cm

so, area of frame =pi*{(7.7)^2-7^2}

=(22/7)*(7/10)*(14.7)

=32.34cm^2