Mathematics, 23.06.2019 02:00 cordobamariana07

What is the measure of angle oac if major arc ab measures 220 degrees? 55° 70° 110° 140° i already know the answer is 55 but i need to know why and how to get 55?

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What is the measure of angle oac if major arc ab measures 220 degrees? 55° 70° 110° 140° i already...

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