Geometry
# Regular Polygons

$\overline {AB}$ is $19,$ what is the area of $\triangle CDE ?$

The above diagram is a regular hexagon. If the length of$23,$ what is the length of $\overline {DK} ?$

The three hexagons in the above diagram are regular hexagons. If the side length of each hexagon isA regular hexagon has side length $8$ cm. What is the perimeter (in cm) of the hexagon?

$CDEF$ when the area of triangle $AOF$ is $3?$

Point O is the center of the above regular hexagon. What is the area of quadrilateral$\triangle ACE$ when the side length of the regular hexagon is $21?$

The above diagram is a regular hexagon. What is the area of