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liubo4ka [24]
3 years ago
6

Help me find the arc length of this. Thank you.

Mathematics
1 answer:
BabaBlast [244]3 years ago
4 0

The red chord is a diameter of the circle, so the length of the blue arc is half the circle's circumference.

The circumference of a circle with diameter d is \pi d, so the circle has circumference 8\pi, and so the arc has length 4\pi.

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