You want to make a 40° angle by marking an arc on the perimeter of a 10-in-diameter disk and drawing lines from the ends of the arc to the disk's center. How long should the arc be?
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Step 1: First, we need to find the length of the arc that corresponds to a 40-degree angle on the perimeter of the disk. Show more…
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You want to make an $80^{\circ}$ angle by marking an arc on the perimeter of a 12 -cm-diameter disk and drawing lines from the ends of the arc to the disk's center. To the nearest millimeter, how long should the arc be?
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