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zalisa [80]
2 years ago
11

Please answer! will give 5 stars, brainliest (if two people answer.), 20 pts, and thanks.

Mathematics
1 answer:
Charra [1.4K]2 years ago
3 0

Answer:

66

Step-by-step explanation:

Angle 2 and 4 are supplementary, so if angle 4 is 123, then 180-123=57.

So angle 2 is 57.

Then, if angle 2 and 3 are 57 and we know that all angles of a triangle have to add up to 180, then:

                             57+57+angle 1=180

                                114+ angle 1=180

                                        angle 1= 66

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3 years ago
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2 years ago
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Answer:

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