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nexus9112 [7]
3 years ago
8

What is the arc length of an angle of 2π 3 radians formed on the unit circle? A) π 3 B) 2π 3 C) 4π 3 D) 5π 3

Mathematics
2 answers:
mars1129 [50]3 years ago
5 0
We know that
in a unit circle the radius is 1
therefore
[Length of a circumference]=2*pi*r------> 2*pi

if 2pi radians in a circle unit has a length of ------------>  2*pi
2pi/3 radians----------------------------> X
X=2pi/3

the answer is 2pi/3

Anestetic [448]3 years ago
3 0
<span>The <u>correct answer</u> is:

2</span>π<span>/3.

Explanation<span>:

An angle formed on the unit circle would be a central angle.

The measure of an intercepted arc is the same as the measure of the central angle; since the angle is 2</span></span>π<span><span>/3, the arc length is 2</span></span>π<span><span>/3.</span></span>
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