A circle has a diameter of 18 feet. Which following is closest to the l circumference of the circle?

Mathematics

2 answers:

lara [203]2 years ago

6 0

circumference =2×pi×r

18/2=9(r)

so...2×pi×9

=54..5

Reika [66]2 years ago

5 0

Answer:

56.5 ft

Step-by-step explanation:

We define the number π as the ratio between the circumference and diameter of a circle: π = c/d. Rearranging this equation gives us one for the circumference: c = πd. Using an approximation of π ≈ 3.14 and our value of d = 18 feet, we can find that c = 3.14(18) = 56.52 ft, or 56.5 ft, rounded to the nearest tenth.

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