Please help with this problem!
Since this is an isosceles trapezoid, angle(A) = angle(B) and angle(C) = angle(D).
So, the total angles: (4x + 20) + (4x + 20) + (3x - 15) + (3x - 15) = 360.
---> 14x + 10 = 360 ---> x = 25.
Can you take it from here?
