Solution
The shape is a rhombus . A rhombus is a quadrilateral
The sum of angles in a quadrilateral = 360 degrees
Therefore,
110 + 110 + 5x + 70 = 360
5x = 360 - 220 -70
5x = 70
5x/5=70/5
x= 14
Alternatively,
opposite angles of a rhombus are equal
5x and 70 are opposite angle
Therefore,
5x = 70
x = 70/5 =14