To determine the area of one of the smaller rectangles in the larger rectangle, you divide the total length (15 mm) by the number of rectangles (5), giving a length of 3 mm for each small rectangle. The width is not provided, so the area formula would be 3 mm times the width in mm. ;
The area of one of the small rectangles that compose the larger rectangle with a longer dimension of 15 mm is 37.5 square millimeters.
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The area of one of the small rectangles is calculated as 3 mm multiplied by its width (w), which is unknown. Without the width, the area can only be expressed as 3 mm × w mm . To find the exact area, the width must be provided.
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