The circumference of a circular clock is 31.4 inches.What is the diameter of the clock

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asked Jul 18, 2017 111k views

2 Answers

John Bustos · Answer 1 · 2017-07-20T21:00:08+0000

The circumference formula is
C =
$2 \pi$ r

We know the circumference, so lets find the radius and we will get the diameter.

31.4 = 2
$\pi r$
divide by 2
$\pi$ to isolate r

$(31.4)/(2 \pi )$ =
$(2 \pi r)/(2 \pi )$
2
$\pi$ and 2
$\pi$ cancels out.

0.4997 = r
0.5 in ≈ r (approximately)

Diameter is 2 × radius
2 × 0.5
1 in

Chishaku · Answer 2 · 2017-07-23T17:33:07+0000

Circumference of a circle=πd
d=diameter
Circumference=31.4 in
π=3.141592654...

31.4 in=πd
d=3.14 in / π=0.999493...in≈1 in

Answer: diameter=1 in

The circumference of a circular clock is 31.4 inches.What is the diameter of the clock

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