Mathematics, 06.03.2020 02:05 hillmarilyn70pe8sy6

Euleuy VI, Ulalla PUSIUI 407220)

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If m ABC = 80°, what is m DBC? Justify your reasoning.

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Using the Angle Addition Postulate, 20+ m2DBC

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DBC = 60° using the subtraction property of equality.

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Using the Angle Addition Postulate, 20 + 80

DBC. So, m DBC = 100° using the addition property of equality.

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Using the addition property of equality, 20 + 80

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Using the subtraction property of equality, 80

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Euleuy VI, Ulalla PUSIUI 407220)

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If m ABC = 80°, what is m D...