What is a counterexample for the conjecture?

If the area of a rectangle is 80 square units, the perimeter must be greater than 35.9 units.

Multiple choice question.

A)
A rectangle with length 39.5 units and width 0.5 unit has a perimeter of 80 units and an area of 19.75 square units.

cross out

B)
A rectangle with length 8 units and width 10 units has a perimeter of 36 units and an area of 80 square units.

cross out

C)
A rectangle with length 8 units and width 9 units has a perimeter of 34 units and an area of 72 square units.

cross out

D)
A square with a side length of 80⎯⎯⎯⎯√ units has a perimeter of approximately 35.8 units and an area of 80 square units.

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