The diameter and the circumference of a circle correlate.
圆的直径与圆周有相互关系。
Circumference of a circle
英语例句库
原声例句
美剧疑犯追踪POI第二季
The ratio of the circumference of a circle to its diameter.
圆周长与其直径之比。
世界节假日
It is used for the ratio of the circumference of a circle to its diameter.
pi代表着圆周到直径的比例。
TED-Ed（视频版）
To find your starting point, you can use the standard formula for the circumference of a circle.
要找到起点，您可以使用圆的周长的标准公式。
Veritasium真理元素
The circumference of a circle is roughly 3.14 times its diameter but Pi is also related to a circles area, area's just Pi R squared.
圆的周长大约是其直径的 3.14 倍，但 Pi 也与圆的面积有关，面积的平方为π R。
Crash Course 综合篇
If you think back to basic geometry, you’ll recall that the circumference of a circle is just 2, times pi, times the circle’s radius, right?
如果回想一下基本几何，您会记得圆的周长只是 2 乘以 pi 乘以圆的半径，对吧？
英语百科
Circumference
The circumference (from Latin circumferentia, meaning "carrying around") of a closed curve or circular object is the linear distance around its edge. The circumference of a circle is of special importance in geometry and trigonometry. Informally "circumference" may also refer to the edge itself rather than to the length of the edge. Circumference is a special case of perimeter: the perimeter is the length around any closed figure, but conventionally "perimeter" is typically used in reference to a polygon while "circumference" typically refers to a continuously differentiable curve.
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