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SOMEONE PLEASE HELP!
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SOMEONE PLEASE HELP!

SOMEONE PLEASE HELP!-example-1
User Weatherfrog
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1 Answer

2 votes

Answer:

m∠2 = 90°

Explanation:

Here's a postulate:

If a line is perpendicular to another line, then they make up 90° on both sides.

OR

If a⊥b, then ∠ are 90°

User Olav Haugen
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