3 years ago

The circumference of a circle is 31.4 inches. What is the circle's diameter? C=31.4 in Use 3.14 for .

2 answers:

8 0

We will use the circumference formula to find the radius and then multiply it by 2 to find the diameter.

C = 2πr
31.4 = (2)(3.14)(r)
31.4 = 6.28r
5 = r

So our radius is 5 in.

We can multiply it by 2 to get the diameter.

5*2 = 10

So the diameter is 10 inches

liubo4ka [24]3 years ago

6 0

49.3
this can be calc for a form

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<h2>~AnonymousHelper1807</h2>

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The circumference of a circle is 31.4 inches. What is the circle's diameter? C=31.4 in Use 3.14 for ​.

The circumference of a circle is 31.4 inches. What is the circle's diameter? C=31.4 in Use 3.14 for .