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Page 410
Spreadsheet Investigation: Angles of
Polygons
1.
For a regular polygon, the measure of each
interior angle in the polygon can be found by
dividing the sum of the measures of the interior
angles by the number of sides of the polygon.
So, the formula to find the measure of each
interior angle in the polygon is “
5
C2/A2”.
2.
For a regular polygon, the sum of the measures of
the exterior angles of the polygon can be found by
multiplying the number of sides by the measure
of the exterior angles. So, the formula to find the
sum of the measures of the exterior angles of the
polygon is “
5
A2*E2”.
3.
The formula for the sum of the measures of the
interior angles is “
5
(A22)*180”, which gives
2
180 for 1 side and 0 for 2 sides.
4.
No, a polygon is a closed figure formed by
coplanar segments.
5.
A 15sided polygon has 13 triangles.
6.
The measure of the exterior angle of a 15sided
polygon is 24.
7.
The measure of the interior angle of a 110sided
polygon is about 176.7.
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This note was uploaded on 12/19/2011 for the course MAC 1140 taught by Professor Dr.zhan during the Fall '10 term at UNF.
 Fall '10
 Dr.Zhan
 Calculus, PreCalculus, Angles, Parallelograms

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