What is the angle between one of the ledges of the cube and the diagonal of the cube intersecting the edge of the cube?

### Question Asked by a Student from EXXAMM.com Team

Q 2349667513.     What is the angle between one of the ledges of the
cube and the diagonal of the cube intersecting the edge of the cube?
NDA 2010 Paper 1
A

cos^(-1) (1/2)

B

cos^(-1) (1/3)

C

cos^(-1) (1/sqrt(3))

D

cos^(-1) (2/sqrt(3))

#### HINT

(Provided By a Student and Checked/Corrected by EXXAMM.com Team)

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