Angle Between Two Vectors Using Dot Product

• A

• B

• C

• D

What is the angle formed between two vectors (orthogonal) using dot product ?

• 45 degrees

• 90 degrees

• 180 degrees

• 60 degrees

What operation you need to find an angle between two vectors?

• Dot product between the two vectors

• Dot product between the two vectors divided by the magnitude of both vectors

• Cosine inverse of dot product between the two vectors divided by the magnitude of both vectors

• Cross product between the two vectors

• Sine inverse of the length of the cross product between the two vectors divided by the magnitude of both vectors

Find the dot product if ||v||= 8, ||w||=6 and the angle between them is θ = 240˚

• -24

• 24

• 48

• -48

Find the dot product.

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• 
• 

If ||v||= 8, ||w||=6 and the angle between them is θ = 240˚ Find the product of vector v and vector w using dot product.

• 24

• -24

• 48

• -48

Find the angle between the two vectors:

• -0.789

• 142.1

• 100

• 0.789

• 45°

• 135°

• 60°

• 120°

If the dot product of two vectors is equal to zero, then what do we know about the two vectors?

• They are parallel.

• They are orthogonal.

• They are neither.