Question

omg can someone please help me with this question!

Find the formula, in terms of K, for the area of a regular octagon with apothem K and side of 10

Answer 1

Regular Polygon Formulas

n = number of sides
s = length of a side
r = apothem (radius of inscribed circle)
R = radius of circumcircle

Sum of interior angles = (n – 2)·180°

Interior angle =

Area = (½)nsr

I found this on http://www.mathwords.com/a/area_regular_polygon.htm

Answer 2

does this help?

Answer 3

well i only know that 10 is the side!

Answer 4

hey what program r u using for geometry??? because you are doing the like exact same problems as me!!!

Answer 5

1/2 times 8 times 10 times radius? is my best for the area

Answer 6

umm this is area of regualr polygons

Answer 7

you have a calculator? I would do 40* (1/2) *10 csc (180degrees/8sides) for area of your octagon ...40 comes from the Area = (½)nsr ( this part (1/2) *10 csc (180degrees/8sides) is for the radius. :)

40* (1/2) *10 csc (180degrees/8sides) this should give you the answer.

Answer 8

will it be 4500