Question

find the circumference of a circle which radius is 8.4 cm​

Answer 1

Answer:

Circle

Solve for circumference

C≈52.78

r Radius

Step-by-step explanation:

solutions

----

C=2πr=2·π·8.4=52.77876

Answer 2

We know that the circumference C and area A of a circle of radius r are given by,

Circumference =2πr and

Area of circle =πr

2

Here, r=8.4cm.

∴C = circumference =2πr =2×

7

22

×8.4=52.8cm