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The measure of ∠DAB equals 110º. The measure of ∠ACB equals 20º.

What is m∠ABC?

The measure of ∠DAB equals 110º. The measure of ∠ACB equals 20º. What is m∠ABC?-example-1

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110 + 20 = 130 or 110 - 20 = 90
User Charelf
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