Without figure its not possible. What does this D come from? is it a triangle or quadrilateral or exterior angle? Furnish this information then only it can be solved. <span>I guess, it is sum of 2 angles. If that is right, 2x + 5x = 91 or 7x =91 or x =13 so 2x = 26. Does that work? </span> <span>Second is same type I guess! </span> <span>2x-1 + 5x +2 = 57. So 7x = 56, x = 8. So DBC = 42. </span>
ECB = 180 - 90 - 53 = 180 - 143 = 37 degrees 37 degrees is also equal to ECB since EAB = ECB. AEB is 90 degrees because a line is 180 degrees and BEC is 90 degrees, and 180-90 = 90.
Once again, a triangle is 180 degrees, so: ABD = 180 - 90 - 37 ABD = 180 - 127 ABD = 53 degrees
