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

d. millimeters per hour.

step-by-step explanation:

we are given that,

carlo used a rain gauge to measure the amount of water his lawn is receiving from the sprinklers.

since, according to the options, we see that,

water cannot be measured by 'miles per hour', 'meters per second' and 'grams per seconds'.

we get that, the water can be measured by 'millimeters per hour'.

hence, the appropriate rate for describing the amount of water is 'millimeters per hour'.