Which polygons in the floor plan have four equal sides and four congurent angles? how many of these polygons are there?

Square has four equal sides and equal congruent angles..

I don't see any picture for the second question

“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 .

The answer would be 7 cages