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Andre45 [30]
3 years ago
6

I really need help been on this problem for like 20 min

Mathematics
1 answer:
ycow [4]3 years ago
6 0
Start with x:
Since x and 57º make a straight line, x+57 = 180 (because a line is 180º). This says x=123º

Now for y:
Because lines m and n are parallel, y and 57º are alternate interior angles and have the same measure. y=57º

Finish with z:
Since y and z make a straight line, can you finish that one from here?
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Ne este dat numărul total de elevi = 30.

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