(FIND THE PERMITER)U DONT NEED TO DO BOTH BUT IT WOULD BE AMASIZNG IF SOMEONE COULD DOESNT EVEN MATTER IF ITS WRONG JUST NEEDS TO MAKE SENSE AND SHOW WORK

Answer:
Second one
Step-by-step explanation:
≈ 26.39
First, the perimeter of a circle has a name, called circumference and the equation is 2πr.
This is my solution, replacing each variable with the value.
C=2πr=2·π·4.2≈26.38938
The dots (·) mean multiplied by, and the "≈" means about that number.
Happy learning!