radian是英语词汇,中文翻译是弧度。弧度是一个量度角度的单位,用于测量圆形上的弧长与半径之比。弧度的符号是rad。
例句:
1. A full circle is equal to 2π radians.(一个进制可以表达2π弧度。)
2. The angle of the triangle is 60 degrees or π/3 radians.(该三角形的角度为60度或π/3弧度。)
3. The sine of 30 degrees is equivalent to 0.5 radians.(30度的正弦值相当于0.5弧度。)
4. The angle of rotation is 4 radians.(旋转的角度为4弧度。)
5. The unit circle has a circumference of 2π radians.(单位圆的周长为2π弧度。)
6. She measured the angle of the corner to be 45 degrees or π/4 radians.(她测量出角的角度为45度或π/4弧度。)
7. The arc length of the circle is 2.5 radians.(圆的弧长为2.5弧度。)
8. The angle between the two lines is 135 degrees or 3π/4 radians.(两条直线之间的角度为135度或3π/4弧度。)
9. He calculated the angle of rotation to be 180 degrees or π radians.(他计算旋转的角度为180度或π弧度。)
评论列表