Cut the grid board into 4 pieces of same Size and Shape with a Square and a Circle

Here is a  6x6 square grid that has 4 squares and 4 circles. Can you cut this grid board in to 4 pieces of same size and shape such that all piece contains a square and a circle. You must cut the board along grid lines.

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Answer :
The above grid board can be cut into 4 pieces of same size and shape as shown below and each piece is colored with different color.