Question

A dog’s chew toy is a rubber ring with a circumference of 41 cm. What is the diameter of the chew toy, rounded to the nearest centimeter? Use 3.14 to approximate pi. cm

Answer 1

the circumference is defined as the multiplication of pi times the diameter, so we have:
c = pi*d
where c is the circumference and d the diameter, if we solve for d:
d = c/pi
and substitute our data:
d = 41/3.14
d = 13.06 cm
that is the diameter