Answer:
44°
Step-by-step explanation:
m∠MKN=44° (sum of angles in a triangle)
m∠KMJ=44° (definition of congruent angles)
38°
because it is equal.
GJ=21
JH=21
GJ=JH
∠GFJ =∠HFJ
∠GFJ =38°
∠HFJ=38°
Z = 6
Z/12 = Cos(60°)
Z/12 = 1/2
the volume of the rectangular prism is 18 units.