Respuesta :

Answer:

The length of GH is 70 units.

Step-by-step explanation:

It is given that, Q is circumcenter of triangle GHJ.

This means that, GQ = QH = JQ

given that, GQ = 15x - 23  and  JQ = 9x + 1

thus, [tex]15x - 23 = 9x + 1[/tex]

[tex]6x = 24[/tex] ,  x = 4 units.

Thus, GQ = QH = JQ =  9(4) + 1 = 37 units

QN is perpendicular to line GH.

Thus in right angled triangle QNH,

[tex](HN)^{2} + (12)^{2} = 37^{2}[/tex]

HN = [tex]\sqrt{1225}[/tex] = 35 units.

Triangles, QGN and QHN are congruent, thus GN = HN = 35 units

The length of GH = (2)(35) = 70 units.