Given an arc of length 144mm on a circle of radius 120mm. Find the radian number of the angle oppos.angle opposite yo the arc求解题过程

分类: 作业答案 • 2022-04-27 22:38:59

问题描述：

Given an arc of length 144mm on a circle of radius 120mm. Find the radian number of the angle oppos
.angle opposite yo the arc
求解题过程

答

The perimeter of a circle:2x3.14x120=753.6(mm)
The radian number of the angles opposite to the arc:144/753.6x360=69