Question

Angle bw two face diognals of a cube

Answer 1

The angle between AC and BD, two diagonals on a square face, is a right angle. If angle EOA were a right angle, then angle ECA would be 45 degrees and EA/AC would = 1. But EA/AC actually equals sqrt (1/sqrt 2). So the angles are not equal.

Answer 2

Answer:

The angle between AC and BD, two diagonals on a square face, is a right angle. If angle EOA were a right angle, then angle ECA would be 45 degrees and EA/AC would = 1. But EA/AC actually equals sqrt (1/sqrt 2). So the angles are not equal.

Step-by-step explanation:

hope it will help you