Question

the sum of angles of a polygon is 3240° how many sides does it have.
with steps

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Answer 1

here,

the sum of angles of a regular polygon=(n-2)×180°

or, 3240°=180n-360°

or, 180n=3240°+360°

or, n=3600°/180

or, n=20

Hence, the number of sides of the polygon is 20.

HOPE IT HELPED :)