Diagonals connect one vertex of a cube to each of two diagonally opposite vertices of the cube in the manner shown below. What is the degree-measure of the angle between these 2 diagonals?

A.
60
B.
90
C.
120
D.
None of these
Mathematics
Competition
Math League
Exam No:2022 First Round Grades 10-12 Year:2022 Question No:16

Answer:

A

Knowledge points:

G10-12 - Geometry - Advanced Coordinate Geo & Vectors

Solution:

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