area of circle - space inside a circle, circumference of a circle - distance around the edge, radius - line from centre to edge, diameter - line from edge to edge through centre, sector - area contained between two radii, arc - a bit of the ciircumference, chord - a line from edge to edge,

circle terms

由 匿名
打印
嵌入

排行榜

视觉风格

选项

切换模板

恢复自动保存：？