Suppose the radius of a circle is 2 units. What is its circumference?

4π

Step-by-step explanation:

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Well, the formula for the circumference of a circle is 2πr. If the radius of the circle is 2u, then the circumference is 2π2=4π

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12.56 units

Step-by-step explanation: To find the circumference of a circle, start with the formula for the circumference of a circle which is shown below.

Notice that here, the radius of our circle is 2 units. So we can plug in 2 for r in the formula. So we have (2)(π)(2) which is equal to 4π units.

Remember that π is approximately equal to 22/7 or 3.14 so we can estimate the value of the circumference by plugging in 3.14 for π.

So we have (4)(3.14) which is equal to 12.56 units.

So the circumference of the circle is approximately equal to 12.56 units.

66.666666667%

step-by-step explanation:

divide 150 by 100

divide 100 by 1.5

there you go!

decreased by 33.333333334%