The circumference of a circle is 8 cm. In this circle, the arc length opposite the central angle of 90 ° is () cm

The circumference of a circle is 8 cm. In this circle, the arc length opposite the central angle of 90 ° is () cm


The circumference of a circle is 8 cm. In this circle, the arc length opposite the central angle of 90 ° is (2) cm



If an arc with a center angle of 150 degrees and a length of 48 cm, what is the circumference of the circle where the arc is located


If the center angle is 150 degrees, the arc length corresponding to each degree of center angle is 48 / 150 = 0.32cm, and the center angle is 360 degrees
That is: the circumference of the circle is: 0.32 * 360 = 115.2cm