输入计算
数学公式
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Length | 10.0 cm |
---|---|
Width | 5 cm |
Area | 50.0 cm² |
Perimeter | 30 cm |
Note: The rectangle visualization is not to scale. It's just a representation of the shape.
通过输入长度和宽度轻松计算矩形角度。确定矩形的内角,用于精确的几何计算和设计项目。
Rectangle Length Calculator
使用这个计算器快速准确地计算扇形面积。输入半径和圆心角(以度为单位),轻松找出圆形扇区的面积。
Semi Circle Calculator. Calculate diameter, circumference, and area of a semi-circle using the radius. Visualize the semi-circle's dimensions with an interactive diagram.
Triangle Calculator
使用这个在线秒表精准计时。轻松开始、停止和重置。
Free online countdown timer. Set hours, minutes, and seconds to count down easily. Simple, fast, and useful for work, study, or daily tasks.
Simple online counter tool. Increase, decrease, or reset numbers instantly. Set custom step values and limits with ease.