Question

find the circumference of a circle whose _ radius is 7 cm , diameter is 8.4 m long ​

Answer 1

Step-by-step explanation:

when radius =7cm

circumference =2πr

=2×22/7×7cm

=44cm

when diameter =8.4 m

radius=diameter/2

=8.4/2m

=4.2m

circumstance=2πr

=2×22/7×4.2m

26.4m