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Mars2501 [29]
3 years ago
12

A circle has a circumference of 28.36 units what is the diameter of the circle

Mathematics
2 answers:
zalisa [80]3 years ago
7 0

Answer:

The diameter of the circle is 9.03 units

Step-by-step explanation:

The formula for calculating the circumference of a circle is C=\pi d.

From the question, the diameter of the circle is 28.36 units.

Since the circumference is rounded to the nearest hundredth, we substitute \pi=3.14  and C=28.36 into the formula and solve for d.

\implies 28.36=3.14d

Divide both sides by 3.14

\implies \frac{28.36}{3.14}=\frac{3.14d}{3.14}

\implies 9.03=d.

Hence the diameter of the circle is 9.03 units to the nearest hundredths

kicyunya [14]3 years ago
3 0

Answer:

d= 9.032 units

Step-by-step explanation:

Given

Circumference = 28.36

We will use the formula for circumference of a circle to find it's radius and then diameter will be found using radius.

So,

C=2\pi r\\Putting\ the\ value\ of\ \pi and \C\\28.36 = 2 * 3.14 *r\\28.36=6.28* r\\r=\frac{28.36}{6.28}\\ r=4.516\ units

Now to find the diameter:

d = r*2

d = 4.516*2

d= 9.032 units

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