https://www.ck12.org/geometry/faces-edges-and-vertices-of-solids/lesson/Faces-Edges-and-Vertices-of-Solids-MSM7/
Answer and working out attached, hope this helps
Here is the answer to the question above. A <span>series of light brown lines drawn at intervals of 50 feet to designate their respective heights above sea level are called CONTOUR LINES. This are the lines which you can see on the maps. Hope this answers your question.</span>
Answer: There is no polygon with the sum of the measures of the interior angles of a polygon is 1920°.
Step-by-step explanation:
The sum of the measures of interior angles of a polygon with 
sides is given by:-
Given: The sum of the measures of the interior angles of a polygon is 1920°.
i.e. 
But number of sides cannot be in decimal.
Hence, there is no polygon with the sum of the measures of the interior angles of a polygon is 1920°.
Hey! the answer would be A regular 40-sided polygon has an interior angle equal to:
(40 - 2) (180) /40 = 171 degrees
The interior angle is also the smallest angle that is needed to rotate the polygon and map it unto itself. So, the smallest degree of rotation needed to map the polygon back to itself is 171 degrees.
