A circle has a diameter of 24 ft . What is its circumference? Use 3.14 for π and do not round your answer. Be sure to include the correct unit in your answer.

The circumference of the circle that has a diameter of 24ft is .

Step-by-step explanation:

The circumference of a circle is given by the formula:

[1]

Where

is the circle's circumference.

. It is a constant and  represents the ratio between the length of the circumference to the diameter of the circle, that is, . This number is irrational and has infinite digits.

is the circle's radius.

The diameter of a circle is

ft

Therefore, we can rewrite equation [1] as  

Then

Using

Then, the circumference of the circle that has a diameter of 24ft is .

Notice that is dimensionless and, since the diameter is in ft the circumference is also represented in this unit.

14 ft 7 inches

step-by-step explanation:

since each model inch corresponds to 25 real inches, 7 model inches will correspond to

7×25" = 175"

at 12" per foot, that is 14 feet, 7 inches.