3 years ago

Suppose the diameter of a circle is 16. what is its circumference?

2 answers:

8 0

The circumference of the circle formula is 2πr or πd.

We will use πd since we know the diameter.

C = πd
C = (3.14)(16)
C = 50.24

Hope this helps :)

Elan Coil [88]3 years ago

7 0

Answer: 16π

Step-by-step explanation: To find the circumference of a circle with a diameter of 16, start with the formula for the circumference,

Circumference = 2πr

Notice that we are given the diameter instead of the radius. The radius is equal to half of the diameter. So here, the radius will be equal to half of 16 or 8.

So we can plug in 8 for r in the formula.

Circumference = (2) (π) (8)

Circumference = 16π

Therefore, the circumference of a circle with a diameter of 16 is 16π.

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