A quarter has a diameter of 2.4 m. what is it's circumference in cm

First lets convert the diameter to cm,

2.4 m equals 240 cm, that is by multiplying 2.4 times 100 because 1 meter has 100 cm

then we need to know how to calculate the circumference, and that is by multiplying pi (3.14) times the diameter of the circumference, that is:

circumference = pi*diameter = 3.14*240

circumference = 753.6 cm

that is the solution