Question

Find the circumference of circle whose radius is 4.2 cm

Answer 1

Answer:

Circumference (C)=26.4cm

Explanation:

Radius of the circle (r)= 4.2cm

Circumference (C) = 2πr

= 2×(22/7)×4.2

= 2×22×0.6

= 26.4 cm

••••

Answer 2

Given: radius = 4.2 cm

to find = circumference

soln:

circumference of circle=2πr

=2×22/7×4.2

=26.4 cm

the circumference of the circle is 26.4 cm