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From Karnataka Open Educational Resources
94 bytes added ,  05:32, 18 December 2013
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*Question Corner
 
*Question Corner
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==Concept #2. Properties of polygons==
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==Concept #2. Properties and measurements of polygons==
 
===Learning objectives===
 
===Learning objectives===
 
# The sum of the interior angle measures of an n-sided, convex polygon is <math>(n-2).180</math>
 
# The sum of the interior angle measures of an n-sided, convex polygon is <math>(n-2).180</math>
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# Each exterior angle must be <math>360/n</math>
 
# Each exterior angle must be <math>360/n</math>
 
# Each of the exterior angle and interior angles are measured from the same line. hence they add upto 180 degrees.
 
# Each of the exterior angle and interior angles are measured from the same line. hence they add upto 180 degrees.
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# Area of Polygon = perimeter × apothem / 2    [[File:Apothem.jpeg|100px]]
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