If the picture is square then it must be sqr6 3600 = 60 cm each edge.
If the picture frame is 5cm wide, and assuming no overlap between the picture and the frame, the total length of frame + picture is 60 + left side frame + right side frame = 70 cm.
The perimeter is the distance around so that is 4*70 cm = ?
Erica painted a picture of her dog. The picture has an area of 3600 cm square and is square. She has placed the picture in a frame that is 5 cm wide. What is the perimeter of the picture frame?
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