Which of the following statements is true about rays? A. They are zero-dimensional objects
B. They are two-dimensional objects
C. They are three-dimensional objects
D. They are one-dimensional objects

“exterior angles of triangles. an exterior (or external) angle is the angle between one side of a triangle and the extension of an adjacent side. try this drag the orange dots on any vertex to reshape the triangle.” look to get to the answer i explained what it means and other things i hope it you .