Regular Polygons. 18.104.22.168 Compose and decompose two- and three-dimensional figures; use decomposition to determine the perimeter, area, surface area and volume of various figures. . Guiding Question: How do we find the perimeter and area of regular polygons?.
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22.214.171.124 Compose and decompose two- and three-dimensional figures; use decomposition to determine the perimeter, area, surface area and volume of various figures.
Examples of polygons: Pentagon, Hexagon, Octagon, Decagon, etc.
Regular: All sides are congruent and all angles are congruent.
For any polygon
Find the sums
Sum of all angles in a polygon is equal to the number of sides minus 2 times 180.
What is the sum of the angles in a
To find the area of a regular polygon.
The apothem is similar to a height.
How can we find the perimeter and are of this pentagon?
A STOP sign is 30 inches from top to bottom, can we figure out the area and perimeter?