Double the area of the rectangle by rearranging matchsticks and adding two more?

The answer is by adding two more matches on the vertical sides as shown below

______ I I I_____ I

In the figure above 8 matchsticks were placed on a grid to form 6 inner triangles.

What is the maximum number of inner triangles you can create by rearranging the 8 matchsticks?

What is the maximum number you can create by adding exactly 3 matchsticks?

Note: The maximum number should be of three digits.

You have to divide the given square into 4 equal parts by adding nine matchsticks. Note: squares can be of different dimensions.

Can you do it?

Add two matchsticks to the layout below to divide the area into two parts.The two parts must be equal in size and shape.

Using exactly three matchsticks, can you divide the area into two equal parts?