Three vectors `vecA, vecB, vecC` are shown in the figure. Find angle between (i) `vecA` and `vecB` (ii) `vecB` and `vecC` , (iii) `vecA` and `vecC`

Explanation

To find the angle between two vectors we connect the tails of the two vectors. We can shift the vectors parallel to themselves such that tails of `vecA, vecB and vecC` are connected as shoown in figure.

Now we observe that angle between `vecA and vecB` is `60^(@),vecB and vecC` is `15^(@)` and between `vecA and vecC` is `75^(@)`