Mathematics, 29.12.2020 02:20 NeriyahY

Euleuy VI, Ulalla PUSIUI 407220) A

V

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

0

Using the Angle Addition Postulate, 20+ m2DBC

11

DBC = 60° using the subtraction property of equality.

EE

Using the Angle Addition Postulate, 20 + 80

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

0

Using the addition property of equality, 20 + 80

0

Using the subtraction property of equality, 80

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Euleuy VI, Ulalla PUSIUI 407220) A

V

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