Ask Experts Questions for FREE Help !
Ask
    tentin's Avatar
    tentin Posts: 2, Reputation: 1
    New Member
    		  
    #1

    May 16, 2012, 12:07 AM
    Formula for octagon side lengths
    How do you determine the lengths of the sides of the octagon
    ebaines's Avatar
    ebaines Posts: 12,131, Reputation: 1307
    Expert
    		  
    #2

    May 16, 2012, 06:09 AM
    Quote Originally Posted by tentin View Post
    how do you determine the lengths of the sides of the octagon
    Depends on what information you have been given. You can use basic triginometry to determine the side length if you have been given the distance from the center to an edge, or if you have been given the area.
    tentin's Avatar
    tentin Posts: 2, Reputation: 1
    New Member
    		  
    #3

    May 16, 2012, 06:19 AM
    From edge to edge it is 5m
    ebaines's Avatar
    ebaines Posts: 12,131, Reputation: 1307
    Expert
    		  
    #4

    May 16, 2012, 06:41 AM
    From geometry the sum of a side length L plus two times L/sqrt(2):



    Rearrange:

    Attached Images
     
    Stratmando's Avatar
    Stratmando Posts: 11,188, Reputation: 508
    Uber Member
    		  
    #5

    May 16, 2012, 01:43 PM
    I was working on some project, I came up with a couple of formulas:
    Divide the Length by 2.4154 = 1 side.
    or
    Multiply the Length X .414 = 1 Side.
Not your question? Ask your question View similar questions
 

Question Tools Search this Question
Search this Question:

Advanced Search

Add your answer here.


Check out some similar questions!

Area and volume of an octagon [ 6 Answers ]

How do you find the area of a octagon How do you find the area of a hexagonal prism's surface area How do your find the volume of a octagonal prism

Volume and surface area of octagon [ 2 Answers ]

If a shape of pool will be octagon and perimeter is 480 feet and height is 5feet what's the surface area and volume?

Octagon gable vent installation [ 4 Answers ]

I need to install an octagon gable vent in gable end of my garage. It has vinyl siding. Do I remove the vinyl siding and then install or do I lay it out on the siding and cut through siding? There is the center support of the truss that I cannot cut out. Just set the circular saw to the depth of...

Area of octagon [ 1 Answers ]

I'm having trouble applying the formula to a specific situation. Height of octagon is 22 cm. sides are five cm. lateral suface area is 880cm easy. The area is 1121. I can't figure this out

Formula of SA in an octagon [ 1 Answers ]

How do I answer the SA of a octagon..

View more questions Search