Puzzle | (4 Matchstick Problem)

Question:-
You are given 4 matchsticks arrange in the form of a plus sign(as shown in the 
figure). Move one and only one of the 4 matchsticks to make a square. You 
may not bend or break of the matchstick. 

Solution:

Approach-1 :
As shown in the above diagram, there are four matchsticks, two placed vertically and one horizontally. The solution is to move the left matchstick leaving a tiny square in the center of the figure. 

Approach-2:

Move the right matchstick to the slant position as shown in the figure.

Thank Palak Gupta for adding approach 2.