Aparabola opens upward. the parabola goes through the point (3, -1), and the vertex is at (2, -2). what are the values of h and v?

In the form

... y = a(x - h)2 + v

the vertex coordinates are (h, v). These are given in your problem statement as (2, -2).

h = 2

v = -2

12

step-by-step explanation:

a triangle's   full angle is 180 degrees so 180 - 156 = 24. 24/2=12