Question

in the figure the length of the arc CNB is the 1 by 5 of the circle and the length of the arc AMD is 1/6 of the perimeter of the circle what is the measure of the central angle of Arc CNB

Answer 1

Answer:

Length of an arc subtending an angle θ=

360

θ

×2πR where R is the radius of the circle.

Also, 2π×R is the formula to calculate the Circumference of the circle.

So, 176=

360

36

× Circumference

Hence, Circumference of the circle =1760cm

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