Question

You want to make an angle measuring 35° by marking an arc on the perimeter of a disk with a diameter of 16 inches and drawing lines from the ends of the arc to the disk's center. to the nearest tenth of an inch, how long should the arc be?

Answer 1

The arc length is given by
.. s = rθ . . . . . . θ is the central angle in radians
.. = (8 in)*(35/180*π)
.. ≈ 4.9 in

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A disk 16 inches in diameter has a radius of 8 inches.