3 years ago

Lines l and m are parallel. Use the diagram to determine the measure of ∠3.

Mathematics

1 answer:

Pavlova-9 [17]3 years ago

5 0

Answer:

∠3 is 70°

Step-by-step explanation:

∠1 is 50° since it is across from another 50° angle

and then you use the equation x+25+2x+50=180 to find x

x then equals 35°

you then use the alternate interior angle theorem to say that ∠3 is 2x, or 70°

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