The diameter of a circle is equal to the side of the square. What is the area of the square if the area of the circle is 49π sq cm?

The diameter of a circle is equal to the side of the square. What is the area of the square if the area of the circle is 49π sq cm?
1). 196 sq cm
2). 154 sq cm
3). 124 sq cm
4). 98 sq cm

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