<span>If the radius of a circle is doubled in length, the circumference of the circle is <span>B. doubled.
</span>C = 2</span><span>πr - this is the equation for circle. So if you double the radius, its circumference also doubles.</span>
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where is your other question? is this spam?
Answer:
30? I might be wrong soooo
Step-by-step explanation:
15*2=30
Answer:
Step-by-step explanation:

Answer: 32.5
Step-by-step explanation:
This is the answer on Khan Acadamy