Question

A regular polygon has an interior angle
of 175°. How many sides does it have?
(Hint: Find the size of its exterior
angles first.)

Answer 1

Ответ:

72

Пошаговое объяснение:

angle = (n-2)*180/n

n - number of sides

175 = (n-2)*180/n

175n = (n-2)*180

175n = 180n-360

5n = 360

n=72