3 years ago

Anyone know the answer to this? I have been struggling?

Mathematics

2 answers:

Oksana_A [137]3 years ago

5 0

180-128= 52
180-42-52-52=34
180-34=146
I think is 146
I think???

zvonat [6]3 years ago

3 0

Answer:

x = 99°

Step-by-step explanation:

first: find the supplement to 123°:

180 - 123 = 57°

second: since all triangle interior angles total a80°:

180 - 42 - 57 = 81°

third: x = the supplement to 81°, so, x = 180 - 81 = 99°

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