PLS HELP! I REALLY REALLY NEED HELP REALLY REALLY BAD!

X=115°

Step-by-step explanation:

If you extend the line on the left up to the top, it forms a triangle.  The three interior angles of that triangle are 50, 180-x, and 180-x.  

50+180-x+180-x=180

410-2x=180

410-180=2x

230=2x

x=115°

Another way to look at it: Since two of the angles in the triangle are the same, they must total 130.  (180-50=130)

130 ÷2 equals 65.  If those angles are 65, x=180-65=115°

x = 130°

Step-by-step explanation:

50° + x = 180°.

Since both are x's, they are the same value.

I hope this helps you!

Have a great day! :)

point a is the center of this circle.

the ratio of the lengths of (ef/bc) and (ad/ih) is 2: 1.

step-by-step explanation:

the correct is answer is a 9-sided polygon!