Linear pairs are when 2 lines intersect, and are adjacent angles.
The measure of a straight angle is 180 degrees, so a linear pair<span> of angles must add up to 180 degrees.
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I hope my answer helped!!!
Answer:

Step-by-step explanation:
Soh-cah-toa is a great way to remember:

You just remember the first letters : sine= opposite/hypotenuse , for example.
Answer:
Connect the arcs to make a perpendicular bisector
Answer:
A
Step-by-step explanation:
Hopefully this helps