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- Calculate the perimeter and the area of a circle skillfully. 熟练地进行周长和面积的计算。
- What is the area of a circle whose diameter is 4 inches? 一个直径是4英寸的园,它的面积是多少?
- Write a function that determines the area of a circle given the radius. 写一个函数,判断一个给定半径的圆的面积。
- The axis of a circle is its diameter. 圆的轴线是其直径。
- If the radius of a circle is longer, the area of the circle will be larger. 半径越长,圆的面积越大。
- Student: The size of the plane which a circle occupies is called the area of a circle. 圆所占平面大小叫做圆的面积。
- A large elevated area of a sea floor. 海底斜坡大面积倾斜的海底
- Review the knowledge about circles. Further study the names of all the parts of a circle and how to work out the perimeter and the area of a circle. 复习圆的有关知识,进一步熟悉了圆各部分的名称,以及圆周长和面积的计算方法。
- The expanded area of a leaf or petal; a blade. 叶片叶子或瓣的延展部分; 叶子
- The reciprocal of the radius of a circle. 曲率一个圆半径的倒数
- The diameter and the circumference of a circle. 圆的直径和圆周相关联。
- Tell the names of each part of a circle. 说出圆各部分的名称。
- He should have been the sun of a circle. 他本应该做一个周而复始的太阳。
- Almost all the balls follow the shape of a circle. 几乎所有球类都呈圆形。
- The total area of a complete picture in television broadcasting. 帧电视传送的一个完整图象全部的面积
- Circumference:The boundary line of a circle. 圆周:一个圆的边界线.
- A diameter passes through the center of a circle. 直径从圆心穿过。
- Teacher: What is the perimeter of a circle? 师：什么是圆的周长?
- Any two diameters of a circle intersect each other. 圆周内两直径必相交。
- The area of jurisdiction of a bishop; a diocese. 主教的辖区；主教管区
