Answer:
Angle 1 = 156°
Step-by-step explanation:
The angle opposite 12 is also equal to 12 because the rhombus is split into two congruent triangles.
The other part about a rhombus is that the line angles in half meaning that where 12 is cut in half, the full angle is 24.
With this info, we now know that the other two angles that are in the triangle with angle 1 have a sum of 24°
Subtract: 180 - 24 = 156°
