Circle - The set of all points that are the same distance from a center point., Diameter - The line (distance) across the circle, through the center., Radius - The line from the center to the outside point on a circle. Half the diameter., Pi - The ratio of the circumference to the diameter.  , Circumference - The distance around a circle. 2ℼr OR ℼd,

Intro to circles

打印
嵌入

排行榜

视觉风格

选项

切换模板

恢复自动保存：？