Answer:

Step-by-step explanation:
remember when dividing with fractions, you are multiplying by the reciprocal.
this means

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Step-by-step explanation:
You need to reflect the shape along the line
Answer:
n = 13
Step-by-step explanation:
The sum of the measures of the interior angles of an n-sided polygon is
(n - 2)180
Set (n - 2)180 equal to 1980 and solve for n.
(n - 2)180 = 1980
Divide both sides by 180.
n - 2 = 11
Add 2 to both sides.
n = 13