An isosceles triangle has two equal sides and the two angles opposite those sides are equal.
等腰三角形有两条边相等且这两边所对的角也相等.
We may define a square as a rectangle with four equal sides.
我们可以把正方形定义为四边相等的矩形。
A square has four equal sides and four 90-degree angles.
正方形有四个等边和四个九十度的角。
A square may be defined as a rectangle with four equal sides.
正方形可定义为具有4条等边的矩形。
A square may be defined as a rectangle with four equal sides.
正方形可定义为具有4条等边的矩形。
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