A regular dodecagon is a polygon with 12 equal sides.
Length of each side = 108/12 = 9 cm.
Length of the apothem = (9/2)/tan 15 = 9/2tan 15 = 16.79 cm
Area of each triangle = 9/2(16.79) = 75.57 cm^2
Therefore, area of the dodecagon = 12(75.57) = 906.9 cm^2
Answer:
i feel ur pain dude geometry sucks
Answer:6365 is already in the simplest form.
Step-by-step explanation :
It can be written as 0.969231 in decimal form (rounded to 6 decimal places).