Question

A circular rug has a radius of 4.5 feet. What is the circumference of the rug? Use 3.14 for Pi and round to the hundredths place.

14.13
28.26
44.37
88.74

Answer 1

28.26

Explanation:

The formula for a circle's circumference is given by:

C = πd, where

• C is the circumference,
• and d is the diameter.

• The diameter of a circle is twice the radius.

Since we're told that the rug's radius (r) is 4.5 feet, we can find the diameter of the rug by multiplying 4.5 by 2:

d = 2r

d = 2(4.5)

d = 9

Thus, the diameter of the rug is 9 feet.

Now we can find the circumference (C by plugging in 9 for d and 3.14 for π:

C = 3.14(9)

C = 28.26

Thus, the circumference is 28.26 feet.