2 (-18 - 6) = -48
By order of operations (PEDMAS) the parentheses are calculated first.
TSR because if u look at the lines of where their similar on the second one you match it up
Triangle= 180 degrees
Angle = 37.5 degrees
Supplement angle = 105 degrees
If you multiply the angle (37.5) by 2 and then add 30, it gives you 105. Then add 37.5 twice to make up the other two angles of the triangle and it gives you 180 total degrees as a triangle should.
Answer:
43°
Step-by-step explanation:
Calculating for the measure of angle C using
<h3>sine rule</h3>

Step-by-step explanation:
In a straight line theres 180 degrees and where x is you can tell its an X lines the opposites will be the same.
First you need to work out the triangles 180-122=58 and a triangle is 180 degrees so
58+40=98 180-98=82°
now working out the other triangle.
180-82=98, 43+98=141
180-141=39
and because the opposites will end up the same x=39°