What Is The Formula For The Number Of Sizes Of A Regular Polygon If The Measurement Of Each Interior Angle Is Given?
what is the formula for the number of sizes of a regular polygon if the measurement of each interior angle is given?
Answer:
Formula:
Given measure of an interior angle = (n-2)(180)/n
Where n = number of sides
Step-by-step explanation:
Application of the formula:
Given measure of an interior angle of a polygon: 108°
To find the number of sides (n) of the regular polygon:
108 = (n-2)(180)/n
108n = (n-2)(180)
108n = 180n - 360
180n - 108n = 360
72n = 360
72n/72 = 360/72
n = 5
Therefore, the number of sides of a regular polygon given the measure of each interior angle at 108° is 5.
The regular polygon with 5 sides is pentagon.
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