Answer:
X = 40 degrees
Explanation:
since the line between the 70 and the x is congruent to the line between x and the empty corner, the empty corner is equal to 70, and 70 + 70 = 140 and if you know that the sum of all of the angles in a triangle is 180 degrees, you find x equals 40 degrees
hope this helps!!!! Thanks for the boatloads of points!!!