Can anyone help me out? thanks
2 answers:
Answer:
450 cm
Step-by-step explanation:
12 degrees is 1/30 of the circumference because there are 360 degrees in a circle.
The minor arc length of 15 is in the same ratio to the circumference as the 2 angles , so the circumference = 30 * 15 - 450 cm.
Answer:
B = 450 cm
Step-by-step explanation:
Length of arc = theta/360 * 2 * pi * r
We know the length of the arc = 15, theta = 12
Substitute these values in
15 = 12/360 * 2 * pi * r
15 = 1/30 * 2 * pi * r
Solve for r
15 = 1/15 * pi * r
15*15 = pi * r
225/pi = r
Circumference = 2* pi * r
Circumference = 2 * pi * 225/pi
Circumference = 2 * 225
Circumference = 450 cm
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