40 or 45 degrees I say dis cuz if u find da overall area then u can find the degrees
All<span> of them </span>have <span>four sides, are coplanar, </span>have<span> two diagonals, and the sum of their four interior angles equals 360 degrees.</span>
So you make your equation 4x+20+40=180.
Add like terms and get 4x+60=180.
Subtract 60 from both sides, get 4x=120.
Divide boths sides by 4, get your answer of x=30.
Hope this helps
