May 01, 2014
§9.2 - Area of Regular Polygons
Day 2
May 01, 2014
Recall:
Day 2 Examples: Find the area of each regular polygon
USING TRIGONOMETRY. Give your answers as a decimal
approximation rounded to the nearest tenth. Don't forget
UNITS!
*round to 4 decimal places in the middle of the problem
ex 1) Find the area of a regular heptagon with a side length
of 2.
EX 2) Find the area of a regular pentagon with a radius of
6.
May 01, 2014
EX 3) Find the area of a regular nonagon with a side
length of 6.
EX 4) Find the area of a regular octagon with a side length
of 4 cm.
May 01, 2014
EX 5) Find the area of a regular octagon with apothem = 6
in.
EX 6) Find the area of a regular 20-gon with radius = 3 cm.
May 01, 2014
EX 7) Find the area of a regular pentagon with radius =
10 ft.