Corresponding 7621

The length of the circular arc at the corresponding angle of 120 ° is 8 cm. What is the size of the whole circle? What is its radius?

Correct answer:

o =  24 cm
r =  3.8197 cm

Step-by-step explanation:

o1=8 cm o=120360 o1=120360 8=120360 8=1202880=24 cm
o = 2   π   r r=2πo=2 3.141624=3.8197 cm

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