Mathematics
Violetta
45

The area of a circle is 78.5 square centimeters, and a subtending arc on the circle has an arc length of 6 pie. The estimated value of is pie 3.14. The measure of the angle subtended by the arc is °.

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(1) Answers
joycesouza

Area = PI * radius^2 radius = 78.5 / 3.14 radius = 25 circumference = 2 * PI * r circumference = 157.08 arc length = 6*PI = 18.85 arc length / circumference = 18.85 / 157.08 = 0.1200025465 central angle = 0.1200025465 * 360 = 43.2 degrees

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