Question

The circumference of a circle is 6.28 kilometers. What is the circle's radius?

Use 3.14 for Pi.

Answer 1

We know that the formula for circumference is:

C = 2πr

where C is the circumference and r is the radius.

Substituting the given value for C:

6.28 km = 2πr

Dividing both sides by 2π:

r = 6.28 km / 2π

r ≈ 1 km

Therefore, the radius of the circle is approximately 1 kilometer.

Answer 2

The radius is 1 km.

Explanation:

c =2
`\pi`r

6.28 = 2(3.14)r

6.28 = 6.28r Divide both sides by 6.28

1 = r

The radius is 1 km.

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