The angle between two lines is equal to the acute angle determined by the direction vectors of the lines.

Two lines are perpendicular if the direction vectors are orthogonal.

Calculate the angle between the following lines:

1.

2.

3.

The angle between two lines is equal to the acute angle determined by the direction vectors of the lines.

Two lines are perpendicular if the direction vectors are orthogonal.

Calculate the angle between the following lines:

1.

2.

3.

Superprof

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