can u please help me
The sum of the measure of the interior angles of a regular polygon is ten times the sum of the measures of the exterior angles. How many sides does this polygon have?

Question

can u please help me 
The sum of the measure of the interior angles of a regular polygon is ten times the sum of the measures of the exterior angles. How many sides does this polygon have?

anonymous · Answer

sum exterior angkles = 360
so sum int. angles = 3600

anonymous · Answer

ok but how do find the number of sides it has

anonymous · Answer

formula is (180- n) / 2      ( i think!!)

no - ill have to check that out

anonymous · Answer

ok

anonymous · Answer

divide 3600

anonymous · Answer

180 (n-2) = 3600
180n - 360 = 3600
180n = 3960
n = 3960 / 180
= 22

anonymous · Answer

ok thanks for showing me how

anonymous · Answer

no probs plz click good answer to close question - i had to google the formula! lol