a. A circle is centered at the vertex of an angle, and the angle's rays subtend an arc that is 110.72 cm long. 1/360th of the circumference of the circle is 0.64 cm long. What is the measure of this angle in degrees? degrees Preview b. A circle with a circumference of 468 cm is centered at the vertex of an angle, and the angle's rays subtend an arc that is 347.1 cm long. What is the measure of this angle in degrees? degrees Preview Hint: Start by computing 1/360th of the circumference of the circle, and then use that as your unit of measure to measure the subtended arc.
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So, if 1/360th of the circumference is 0.64 cm, then the total circumference of the circle is 360 * 0.64 = 230.4 cm. Show more…
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