Mathematics, 20.10.2020 01:01 weasel71

The sum of angle 1 and angle 4 and the sum of angle 3 and angle 4 are each equal to 180 degrees by the definition of supplementary angles. The sum of angle 1 and angle 4 is equal to the sum of angle 3 and angle 4 . Angle 1 is equal to angle 3 by the subtraction property of equality. a. by construction using a straightedge
b. by the definition of a perpendicular bisector
c. by the transitive property of equality
d. by the vertical angles theorem

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The sum of angle 1 and angle 4 and the sum of angle 3 and angle 4 are each equal to 180 degrees by t...

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