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8090 [49]
3 years ago
5

Determine which justification best fits step 3 for the following proof

Mathematics
2 answers:
devlian [24]3 years ago
7 0

Answer: it's actually angle addition postulate

explanation: angle addition postulate is the one that allows you to say that the individual parts of a bigger angle can add up to equal that bigger angle

fgiga [73]3 years ago
6 0

Answer:

D

Step-by-step explanation:

Since ABC is collinear and angle 3 is a right angle, adding 1&2 together should equal 3, which comes out to being equal to line ABC

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Third, cancel 3x on both sides. / Your problem should look like: -3 = -5
Fourth, since -3 = -5 is false, there is no solution.

Answer: No solution

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