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Step-by-step explanation:

The circumference of a circle's formula is pi*d (d being diameter).

If it only shows you the radius, then the formula would be 2*pi*r (r being radius), this is the same as pi*d.

2*r = d

Question 2

The circle has a diameter of 100m. Find circumference

pi*d

pi*100

314.16m in total

answer: the answer is 30 miles per hour.

ft/s -> mphmph = ft/s 1.466667mph = 44 divided by 1.466667mph = 30.00000

- r3ktforgood ☕

the answer is 54 sq. ft. i just did this question, on odyssey ware, and it was right. make brainliest.