What is the measure of the angle X made by the diagonals of the any adjacent sides of a cube.  Choose one: A) 30 B) 45 C) 60 D) 75 E) 90
C.. 60 degrees   All the diagonals are equal. If we take 3 touching sides and connect their diagonals, we form an equilateral Triangle. Therefore, each angle would be X=60.60
<result>C</result>
What is the measure of the angle X made by the diagonals of the any adjacent sides of a cube.