Four posts with 3-in. radii
are bound together with a
wire. find the length of the
shortest wire that will go
around them.

The graph isn’t that clear

“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 .

Ican’t sorry i would if i could