In the following diagram,the vertex of the right angle is on line L.
问题描述：
In the following diagram,the vertex of the right angle is on line L.
In the following diagram,the vertex of the right angle is on line L.Please calculate the sum of all the angles' degrees in the diagram that is smaller than a straight angle.翻译翻译
答
在下面的图中,直角的顶点是在线L.请计算图中所有角度的总和小于一个直角.