If radius = 30, the circumference = 2*PI *radius =
<span>
<span>
<span>
188.4955592154
</span>
</span>
</span>
cm
The arc = 18*PI cm =
<span>
<span>
<span>
56.5486677646
</span>
</span>
</span>
The arc is (<span>
56.5486677646 / </span><span><span>188.4955592154) = one third of the
</span></span><span><span>
</span></span><span><span>circumference and so it subtends a central angle of 120 degrees.
</span></span><span><span>
</span></span><span><span>
</span></span>
Answer:
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Step-by-step explanation:
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Answer:
Step-by-step explanation: