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GRE
GRE Quantitative Reasoning Section

Interior Angles of a Regular Decagon

Medium Geometry Polygons

Consider a regular polygon with 10 sides, known as a decagon. To find the measure of each interior angle of a regular polygon, you can use the formula:

$$ I =\frac{(n - 2) imes 180}{n} $$

where $$ n $$ is the number of sides. Using this formula, what is the measure of each interior angle of the regular decagon?

Hint

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