45 workers can complete a piece of work in 12 days. how many workers should be removed so that it takes 6 more days to complete the work

“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 .