Use 3.14 for pi and explain or show your reasoning. 1. If the ceiling fan's radius is 2.8 ft. What is the circumference?
2. If the water bottle caps radius is 13 mm. What is the circumference?
3. If the bowls circumference is 56.5. What is the radius?
4. If the drum s circumference is 75.4. What is the radius?

1. 17.584 feet

2. 81.64 mm

3. 9

4. 12

Step-by-step explanation:

The formula for the circumference of a circle is 2 times pi (or 3.14 in your case) times the radius of the circle.

1. Using the above formula, we can plug in the radius:

2*3.14*2.8 = 17.584

2. This is similar to the above question, so we plug in the radius into the formula:

2*3.14*13 = 81.64

3. We know the circumference of the circle so we can plug it in the formula:

56.5 = 2*3.14*r

56.5 = 6.28*r

r = 8.996  (roughly 9)

4. This is similar to question 3 so we do the same thing:

75.4 = 2*3.14*r

75.4 = 6.28*r

r = 12

the answer is the third / last answer

step-by-step explanation: