If vecA, vecB, vecC represents the threee sides of an equilateral triangle taken in the same order then find the angle between (i) vecA and vecB (ii) vecB and vecC (iii) vecA and vecC.

If vecA, vecB, vecC represents the threee sides of an equilateral tria

1.	If vecA, vecB, vecC represents the threee sides of an equilateral triangle taken in the same order then find the angle between (i) vecA and vecB (ii) vecB and vecC (iii) vecA and vecC.
Answer» SOLUTION :From the DIAGRAM the angle between the vectors `VECA and vecB`, the angle between `vecB and VECC` is `120^(@)`, the angle between `vecA and vecC` is `120^(@)`