1.1 cm is the 1/360th of the circumference. The circle's circumference is 69.72% of the arc that the angle's rays subtend.
We must comprehend and use the relationships between arc length and circumference in this question. By using geometry, we can determine that a circle's central angle is 360 degrees, and that the circle arc is directly proportional to the central angle.
The angle's rays' subtend an arc that is 69.72% the diameter of the circle.
The circumference's length is multiplied by 1/360 to get the 1/360th of the circumference, and the resulting measurement is
s= 1/360 x 396
= 1.1
the circumference is 1.1 cm.
By dividing the subtended arc by the arc length, one may determine the arc that the angle's subtend rays :
n = 276.1/396 x 100%
n= 69.72%
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