4 years ago

I'm not even sure how to do this.

Mathematics

2 answers:

Andrews [41]4 years ago

7 0

Answer:

8π

Step-by-step explanation:

360° = 2πr = πd

120° = 1/3 * 360°

120° = 2/3πr = 1/3πd

If the radius r = 12:

arcAB = 2/3π * 12 = 8π

Rama09 [41]4 years ago

7 0

Answer:

AB = 8π

Step-by-step explanation:

The length of the arc AB is calculated as

AB = circumference of circle × fraction of circle

= 2πr × $\frac{120}{360}$

= 2π × 12 × $\frac{1}{3}$

= 24π × $\frac{1}{3}$ = 8π

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