答案是5，目前为止，这个平行四边形的面积,是那个正方形面积的5倍。
That's 5. OK, this parallelogram is apparently five times the size of this square.
把篮球比赛用的篮框做成正方形，面积保持与标准篮框一样大。
Square a basketball rim to a same area of the standard round one.
要计算正方形的面积，只需用边长自乘即可。
To calculate the area of a square double the length of one side.
要计算正方形的面积，只需用边长自乘即可。
To calculate the area of a square double the length of one side.
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