That's the second one,
180 - x = r
Whenever two lines cross we get congruent opposite angles and supplemental adjacent angles, i.e. they add to 180 degrees.
The first one is almost right; we have r+y+z=180 and r+x=180 so x=y+z not quite what was written.
You need to use division.
Answer:
the sum is 5
Step-by-step explanation:
38 10 49 11 60 12..
How
27 - 16 = 11
8 - 7 = 1
So for each small number add 1 ad for the big add 11
