Please answer this maths question as seen in the details below. This is urgent, so please do it soon. Thanks.?

Posted on 1970-01-01 00:00:00 in Math by JAMES

Cutting along the lines on 1cm square grid paper, Tia produced many squares. The sides on her squares were all longer than 1cm. She then partially overlapped various pairs of squares and then worked out the perimeter of the final shape. 
Note: One square must not be wholly on top of another, there has to be some overhang in the overlap, and also the grid lines of both squares must coincide. 


a. The overlap of two squares has area 12cm². The perimeter of the final shape is 30cm. Find all possible sizes of the two squares. 

PLEASE SOLVE QUESTION A. URGENT!!!

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