The sum of the measures of the interior angles of a polygon is 1620°.

How many sides does the polygon have?

Question

The sum of the measures of the interior angles of a polygon is 1620°.
 
How many sides does the polygon have?

anonymous · Answer

well they r gonna b greater than 90° angles so cant b less than 5...

annah.bee · Answer

ok

anonymous · Answer

got any choices??

annah.bee · Answer

idk 6 or 7 lol

anonymous · Answer

6 would put them @ 270 each

anonymous · Answer

so not that

annah.bee · Answer

its gonna be like 20 or something isnt it

aihberkhan · Answer

Okay to find the Sum you will have to do $(n-2)180$

So, $1620 = (n-2)180$
 
Now just keep on solving $n-2 = 9$

$n = 11$ sides

mathstudent55 · Answer

Use the formula:

S = (n - 2)180

where S = the sum of the measures of the angles of a polygon, and
n = number of sides

You know S. Plug in the number for S, and solve for n, the number of sides.

aihberkhan · Answer

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annah.bee · Answer

thanks for everyones help.. i will fan all of you nd medal youall