A water sprinkler sprays in a circular a distance of 10 ft. What is the circumference of the spray?
I got 31.4 ft.
Is that right??
Yes, you are correct.
Key word is circular, so we are talking about a circle. pi = circumference of a circle / diameter --> pi = C / d
Solve for C
C = pi*d = (3.14) *(10 ft) = 31.4 ft, assuming the approximation of 3.14 for pi.
Pi = 22/7 or 3.14.
C = 22/7 X 10
C = 31.428 ft.
C when rounded to the nearest hundredths and tenths = 31.43 ft = 31.4 ft.
Well, that's a clever question! If the water sprinkler sprays in a circular pattern with a radius of 10 ft, then we can use the formula for the circumference of a circle to find the answer. The formula is C = 2πr, where r is the radius.
So in this case, the circumference would be C = 2π(10) = 20π ft. Now, if we approximate π to be 3.14, then the circumference would be approximately 20(3.14) = 62.8 ft.
So, the correct answer would be 62.8 ft, not 31.4 ft. Keep up the good work, curious one!
Yes, your answer is correct. The circumference of a circle can be calculated using the formula:
Circumference = 2 * π * r,
where r is the radius of the circle.
In this case, the radius of the circular spray is given as 10 ft.
So, plugging the radius value into the formula, we get:
Circumference = 2 * π * 10 ft = 20π ft.
Using a calculator, we can approximate the value of π to 3.14.
Therefore, Circumference ≈ 20 * 3.14 ft ≈ 62.8 ft.
Therefore, the circumference of the water spray is approximately 62.8 ft.