Question
Hilda painted a letter 'N' on a piece of rectangular cardboard that has a length of 20 cm. The ratio of the length to the breadth of the cardboard is 4 : 3. Both triangles were identical. What area of the cardboard was painted?
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Hilda painted a letter 'N' on a piece of rectangular cardboard that has a length of 20 cm. The ratio of the length to the breadth of the cardboard is 4 : 3. Both triangles were identical. What area of the cardboard was painted?