Find the diameter of the circle if its length is 18.84 cm.

We know the circumference from the condition and it is equal to 18.84 cm, also to solve the problem we need to know the value of the constant n = 3.14.

In order to find the diameter of a circle with a given circumference, recall the formula for finding the circumference through the diameter.

l = nd, where d is the diameter of the circle, and n is a constant equal to 3.14.

Substitute the known values and calculate:

3.14d = 18.84;

We are looking for a variable as an unknown factor:

d = 18.84: 3.14;

d = 6 cm.

Answer: 6 cm of the diameter of a circle with a given length.