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aleksandr82 [10.1K]
3 years ago
7

If the diameter of a circle is 5 centimeters, how long is the arc subtended by an angle measuring 60° ?

Mathematics
2 answers:
Marizza181 [45]3 years ago
7 0
Arc length s is given by s = r*theta, where theta is the central angle in radians (not degrees).

Here the diam. is 5 cm, so the radius is 5/2 cm.  60 deg = sqrt(3) / 2.  Thus,

the arc length is    s = (5/2 cm)*sqrt(3) / 2.  This simplifies to (5/4) sqrt(3).
Darina [25.2K]3 years ago
5 0
I think the answer will be 12 because 12 times 5 is 60°
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