a regular polygon inscribed in a circle.
内接于圆的等边多角形。
a regular polygon inscribed in a circle.
内接于圆的等边多角形。
In the Tianshuihai area, small pingos, unsorted circles, sand wedges and polygons, and other periglacial phenomena were identified.
在该地大量小型冻胀丘、石环等冰缘象的存在。
A prismatoid having polygons with the same number of sides as bases, and faces that are parallelograms or trapezoids.
四个边相等的平行四边形;不是直角的等边平行四边形。
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