Question

PLEASE PLEASE PLEASE HELP!! Explanations on how to set it up would be great!

thank you so so much in advance!!

Please don't reply if you're unsure, I genuinely need help ///:

Answer 1

You have all angles , the square is to imply that the corner is 90°
Add them all up
148+(2x+10)+112+2x+90=540 ( a polygon's total angles is 540)
148+2x+10+112+2x+90
360+4x=540 combine like terms
4x=540-360 combine like terms
4x=180
X=45° divide 180 by 4

Answer 2

hope this helps........