Question

In a triangle ABC, if taken in order, consider the following statements:

1. vector (AB) + vector (BC) + vector (CA) = vector 0

2. vector (AB) + vector (BC) + vector (CA) = vector 0

3. vector (AB) + vector (BC) + vector (CA) = vector 0

4. vector (BA) + vector (BC) + vector (CA) = vector 0

How many of the above statements are correct? 

a. One 

b. Two 

c. Three 

d. Four 

Answer 1

Correct option a. One

Explanation:

From Δ law of vector addition

vector (AB) + vector (BC) + vector (CA) = 0

Only statement (1) is correct.