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An arc is intercepted by a central angle of 3π2 radians on a circle with a radius of 18 centimeters. What is the exact length of the arc? Enter your answer, in terms of π , in the box.
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Feb 16, 2019
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An arc is intercepted by a central angle of 3π2 radians on a circle with a radius of 18 centimeters.
What is the exact length of the arc?
Enter your answer, in terms of π , in the box.
Mathematics
high-school
BizarroDavid
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we know that
length of circumference=2*pi*r
for r=18 cm
length of circumference=2*pi*18--------> 36pi cm
if 2pi radians (full circle)------------------> has a length of 36pi cm
(3/2)pi radians---------------------------> X
X=(3/2)pi*36pi/2pi----------> x=27pi cm
the answer is
27pi cm
Omkaartg
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Feb 23, 2019
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Omkaartg
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