Question

Length of the line segment joining the points -1 -i and 2 + 3i is

• A. – 5
• B. 15
• C. 5
• D. 25

Answer 1

The correct option is C

5

Since the coordinates in complex plane are (2, 3) and (-1), 1 Hence the required distance is 5.

Trick : We know that the distance between $z_1$ and $z_{2}is|z_1-z_2|$ therefore, the required length |2 + 3i + 1 + i| = 5.