the sum of all the angles on a 5 sides geo figure is 540 degrees. since the is 2 (90) degrees angles inside we left with 360 degrees. A line is 180 degrees, and we take 70 degrees away we left with 110 degrees. 360- 110= 250
From the other line we take 60 off 180 we left with 120. 250- 120= 130. 130 degrees is the inside angle of the line with X