Answer:
a = 54
Step-by-step explanation:
In geometry, the angles in a triangle add up to 180.
The unmarked angle at the top of the triangle = 180 - (a+10+44)
Or you could say that same angle = 180 - 2a because it is supplementary to the exterior angle... so
2a = a + 10 + 44
2a-a = 54
a = 54
