Acute Angle of Rhombohedron is the angle of any of the six rhombus faces of the Rhombohedron, which is less than 90 degrees. And is denoted by ∠Acute. Acute Angle of Rhombohedron is usually measured using the Degree for Angle. Note that the value of Acute Angle of Rhombohedron is always positive. Typically, the value of Acute Angle of Rhombohedron lies in the range from 0 to 90.