3 years ago

Let ∠1, ∠2, and ∠3 have the following relationships.

Mathematics

1 answer:

Archy [21]3 years ago

3 0

Answer: If 1 and 2 are adjacent right angles, they are both 90º.

1 and 3 are vertical, which means they must be congruent, so 3 is also 90º

So: 90 + 90 - 90 = 90

Step-by-step explanation:

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