perplexus.info :: Geometry : Cube Angle

Cube Angle (Posted on 2004-08-04)

Can you say what angle is made by the two red lines drawn on two sides of the cube as shown in the illustration?

See The Solution Submitted by SilverKnight

Rating: 2.4167 (12 votes)

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Solution (spoiler)

| Comment 1 of 14

60 degrees
Since connecting the other two ends of the red lines is another equal diagonal, and that makes an equilateral triangle.

Posted by Larry on 2004-08-04 07:11:08

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