SOLUTION: The measure of an interior angle of a regular polygon is given which is 90. find the number of sides in each polygon
Algebra ->
Polygons
-> SOLUTION: The measure of an interior angle of a regular polygon is given which is 90. find the number of sides in each polygon
Log On
Question 394503: The measure of an interior angle of a regular polygon is given which is 90. find the number of sides in each polygon Found 2 solutions by Alan3354, jrfrunner:Answer by Alan3354(69443) (Show Source):
You can put this solution on YOUR website! The exterior angles are also 90º
The sum of the exterior angles of ALL polygons is 360º.
360/90 = 4
You can put this solution on YOUR website! It is known that
The sum of the interior angles of a "n" sided polygon is =(n-2)*180
--
assuming that all the interior angles are equal, then a single interior angle will measure (n-2)*180/n
==
Since you state that the interior angle is 90 then
(n-2)*180/n=90
180n-360=90n
90n=360
n=4