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The perpendicular distance from the center to a side of a regular polygon.
A = 1/2 Pa
formula for area of a regular polygon
Area formula with radius
center of regular polygon
The point of intersection of the perpendicular bisectors of the sides
From center to a point on the circle.
an angle whose vertex is the center of the circle
two sides have the same length
In each regular polygon, will the triangles be congruent?
It's the Same
How does the number of triangles formed in each polygon compare with the number of sides?
What is the apothem called In a triangle?
A= s • a /2
Area of isosceles triangle in terms of a and s
Area of the hexagon
A= 6 • s • a/2
Area of any n-gon-
A= n • s • a/2
How to find the measure of the central angle in a regular polygon-
Apothem • perimeter /2
Trigonometry to find the missing segment lengths
When you find the area of regular polygons other than equilateral triangle, squares and hexagons you will need to use..
Area of a triangle
Area of a Parallelogram
s ^ 2
Area of a square
Area of a rhombus
Area of a trapezoid
1/2 (b+b)h or mh
Area of a regular polygon
Area of a Circle
pi r ^ 2
Median of a trapezoid