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ankoles [38]
3 years ago
14

Find the value of the circumference of a circle with the given diameter.

Mathematics
1 answer:
lys-0071 [83]3 years ago
7 0
C= 2πr, and 2r = D (diameter). So, you can also use this equation: C =D<span>π
Since we know the diameter, and we know the value of </span><span>π, we can easily calculate the value of circumference. 
C = D</span><span>π
C = 3.21</span><span>π 
</span><span>This means that the correct answer is B. 3.21 pi</span>
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Step-by-step explanation:

Step 1: Define

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Step 2: Substitute variables

54 = 4x + 6

Step 3: Solve for <em>x</em>

<u>Subtract 6 on both sides:</u> 48 = 4x

<u>Divide both sides by 4:</u> 12 = x

Step 4: Check

<em>Plug in x to verify it is a solution.</em>

f(12) = 4(12) + 6

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