MATH FOLKS--AREA OF A PROPERTY

lenray · Feb 25, 2018

I have a small piece of property that is called an Irregular Quadrilateral--none of the four side are parallel. The four sides are as follows. 50 ft.x 280 ft.x 300 ft.x 335 ft
With an acre at 43,560 sq. ft. What do I have here??????

Tx Jim · Feb 25, 2018

Have you considered locating this parcel of land on Google Planimeter then establishing the boundary points so it can display the amount off land?

Mike(NEOhio) · Feb 25, 2018

Find it on google earth and use the measuring tools. I can't access my CAD program right now but you will need at least one corner angle to calculate it.

ss55 · Feb 25, 2018

Do you know an angle between two of the legs?

grizz02 · Feb 25, 2018

I came up with 2.62 acres but I'm no math wiz someone else will chime in

JD Seller · Feb 25, 2018

I have found you can get real close by averaging the two distances on the opposite sides. So assuming that the 50 ft. and 300 ft. sides are opposite you would add them 50 + 300 = 350 then 350/2 = 175 for that dimension. then the 280 ft. plus 335 ft. = 615 615/2 = 307.5 307.5 x 175 =53812.50 53812.5/435660=1.235 acres.

This will be very close. Calculus can get it even closer but I am not doing that in a post. LOL

teddy52food · Feb 25, 2018

I get + or - 55680 sq feet which is close to 1 1/4 acre.

ss55 · Feb 25, 2018

If you don't know any angles, measure one of the diagonals. You can then calculate the area inside the two triangles. An angle or diagonal should be included in your legal description.

MarkB_MI · Feb 25, 2018

Without knowing at least one of the corner angles, you can't calculate it. But we can get a rough estimate.

Let's fudge the dimensions to make it symmetrical: 50 x 308 x 280 x 308. (308 is the average of 280 and 335.)

We'll assume the "height" of this quadrilateral is a little shorter than the length of its sides, so make it 300.

Now we can take out a rectangular slice out of the middle: 50 x 300 = 15,000.

Put the remaining pieces together to form a triangle 308 tall with a base of 230. The area of a triangle is 1/2 base x height = .5 x 230 x 300 = 34,500.

Add them up: 15,000 + 34,500 = 49,500

49,500 / 43,560 = 1.1 acre.

MarkB_MI · Feb 25, 2018

"Put the remaining pieces together to form a triangle 308 tall with a base of 230" should have read "Put the remaining pieces together to form a triangle [b:654c4848f0]300[/b:654c4848f0] tall with a base of 230". The calculations are unchanged.

Dave Sherburne, NY · Feb 25, 2018

Try this
planimeter

olgentdc · Feb 25, 2018

Thats How I Do It JD . And Yes ,Calculus Would be Closer if You are Working On Launching to the moon and Ya dont Wanna miss It and over or under shoot it ! LOL. I was reading Down all the workable posts and yes they are correct, but i already had the answer using the barnyard math method you simply described , except i used 308 x175 , I Want to Error on the Hi side , that way i Charge enough for Materials , Or if get Enuf Spray and Seed , fertilizer our There

donjr · Feb 25, 2018

Look it up on 'Acme planimeter'. If you know where the corners are, you place a point there and scribe a line around the area. Look at the bottom of the screen, and it will ell you how big the area is. And, it is very accurate.

guido · Feb 25, 2018

Hello lenray,

You tax map is the law! It is also pretty much on the money. Get the right info at the tax office. My town has it on line free download of the whole town,

Guido.

Russ from MN · Feb 25, 2018

Most hand held GPS's have a feature that you can just walk around a property and it will tell you the acreage.

2x4 · Feb 26, 2018

look up "double meridian distance' to calculate area of odd shaped tracts.

lenray · Feb 26, 2018

Thanks fellas for all the help----MUCH APPRECIATED.......

chuck t · Feb 26, 2018

(quoted from post at 11:09:54 02/25/18) I have a small piece of property that is called an Irregular Quadrilateral--none of the four side are parallel. The four sides are as follows. 50 ft.x 280 ft.x 300 ft.x 335 ft
With an acre at 43,560 sq. ft. What do I have here??????

There is an app for the iPhone called measure map lite. I think it’s free. Can measure area easily from anywhere

MATH FOLKS--AREA OF A PROPERTY

lenray

Well-known Member

Tx Jim

Well-known Member

Mike(NEOhio)

Well-known Member

ss55

Well-known Member

grizz02

Well-known Member

JD Seller

Well-known Member

teddy52food

Well-known Member

ss55

Well-known Member

MarkB_MI

Well-known Member

MarkB_MI

Well-known Member

Dave Sherburne, NY

Member

olgentdc

Well-known Member

donjr

Well-known Member

guido

Well-known Member

Russ from MN

Well-known Member

2x4

Well-known Member

lenray

Well-known Member

chuck t

Member

Similar threads