g (1 point) Find the angle between the diagonal of a cube of side length 8 and the diagonal of one of its faces, so that the two diagonals have a common vertex. The angle should be measured in radians. (Hint: we may assume that the cube is in the first octant, the origin is one of its vertices, and both diagonals start at the origin.)

Angle between the diagonal of a cube of side length 8 and the diagonal of one of its faces is equal to radian

Step-by-step explanation:

Please see the attached image for better understanding

Length of OB is equal to

Now the length of OE is equal to

Now Angle BOE is equal to

radians

Angle between the diagonal of a cube of side length 8 and the diagonal of one of its faces is equal to radian

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step-by-step explanation: