Please help .

67 degrees

Step-by-step explanation:

A quadrilateral is 360 degrees. You have 1 angle. Look at the left and right sides. If they're the same, then the opposite angles are congruent. Since they're congruent, that would mean the angle between 10.4 and 20.8 is 113. Since the angle opposite of x is the same as x, we could solve now. We make an equation

2x+113+113=360

x=67

step-by-step explanation:

and 90% of people marry there 7th grade love. since u have read this, u will be told good news 2night. if u don't pass this on nine comments ur worst week starts now this isn't fake. apparently if u copy and paste this on ten comments in the next ten minutes you will have the best day of ur life tomorrow. you will either get kissed or asked out in the next 53 minutes someone will say i love u

read more on -

if i'm not wrong, i would say that the third angle has (72) because the three sides of all triangles have 180 degrees and if we subtract 180 - 62 - 40 = (72) / but i'm not sure about 40 yd.