How many area are there in a 100 cm perimeter shape?

How many area are there in a 100 cm perimeter shape?
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The area will depend upon the shape itself - a perimeter of 100cm could be a square 25 cm by 25 cm (area 25 cm × 25 cm = 625 cm²)or a rectangle 30 cm by 20 cm (area 30 cm × 20 cm = 600 cm²) or anyother shape.The maximum area is a circle with a circumference of 100 cmwhich has an area of approx 795.77 cm²Which means any shape with a perimeter of 100 cm has an areawhich is less than or equal to approx 795.77 sq cm.
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