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2 years ago

I need help sorry for bothering everyone.

Mathematics

2 answers:

evablogger [386]2 years ago

6 0

Step-by-step explanation:

We know that:

$m\parallel n$
$m\angle2=60\°$
$m\angle1=m\angle3;m\angle2=m\angle4;m\angle5=m\angle7;m\angle6=m\angle8$ .; because they are opposite angles.
Also, $m\angle3=m\angle5$ ; because they are alternate interior angles.
We can see that $m\angle1+m\angle2=180$ ; because they are supplementary angles and they are on a straight angle.

So, based on those deductions:

$m\angle1+m\angle2=180\\m\angle1+60=180\\m\angle1=180-60\\m\angle1=120$

Then,

$m\angle1=m\angle3\\m\angle3=120=m\angle5=m\angle7$

All these angles are the same, because they are opposite (1 and 3), alternate interior (5 and 5), and opposite (5 and 7).

Therefore, $m\angle7=120\°$

Paladinen [302]2 years ago

3 0

Answer:

Look at the picture down below :)))

Step-by-step explanation:

I just took the test and I got the correct answers, hope this helps!

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