Question

find the circumferebce of a circle whose diameter is 7 by 22 cm

Answer 1

circumference of circle =
$\pi \times d$
$\frac{22}{7} \times \frac{7}{22}$
=1.

hence,
circumference of circle is 1

Answer 2

Diameter of circle = 7/22 cm

Circumambulation of circle

= πd

=(22/7)(7/22)

=1 cm