Find the measure of angle ACE.Arc AB is 100 degrees,Arc AE is 120 degrees, and Arc De is 100 degrees.
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The measure of the angle ACE is 60 degrees.
An arc is simply a part of the circumference of a circle or other curve.
as we have arc AE is 120 degrees.
Then by the properties of the interior and the exterior arc, arc BD, which is angle ACE is 120/2=60 degrees.
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