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Problem 19 - Entrance Test

A circle and a square have equal perimeters. If the area of the square is 49 cm², the area of the circle is

Correct: D

Square side 7 cm, perimeter 28 cm. Circle circumference 28=2πr → r=14/π. Area=πr²=π×(196/π²)=196/π≈62.4 cm². Closest 62.