Help working out a area

[RobArb]

agreed:thumbup:

 

ok call it quits, free all in!

 

i'll go back to me cider:biggrin:

[headgroundsman]

cider it is mines a pint:thumbup:

[John Barleycorn]

Divide into triangles.

The area of any triangle (using any sides)

 

is :- HALF BASE X HEIGHT

[Pedroski]

Divide into triangles.

The area of any triangle (using any sides)

 

is :- HALF BASE X HEIGHT

 

This is the problem.....with the measurements given, there's no way to know what triangles to divide into

[morten]

Hi need help again with an area we have to turf. We have worked it out but want some confirmation as its a big area and dont want to get it wrong.

 

I have broken the area into 3 differant areas

 

Area 1

Top side 5m

side 1 5m

side 2 4m

bottom side 5m

 

Area 2

 

Top side 22m

side 1 22.5m

side 2 13.5m

bottom side 12.5m

 

Area 3 is a triangle

 

side 1 26m

side 2 25m

side 3 18.5m

 

Hope someone can help got to get it priced asap for a customer of ours who found 30 cows paddling round on his lawn:thumbup:

 

Many thanks James

 

For calculating area of four sided plots, you can use this calculator: Calculating the area (acreage) of a four-sided lot - Math Central

As you don't have any angle or diagonal measurements I suggest you enter 90 degrees as one of the angles, since that would give you a measure close to the maximum possible for the side measurements you provide (i.e. the area will be unlikely to be larger than the calculated result). If you are in doubt of which angle to set at 90 degrees, try each one of them.

 

For triangles, use this calculator: Heron's Calculation of triangle area

 

The results (largest possible area) follow:

 

Area 1: 22.3 m²

Area 2: 288.9 m²

Area 3: 219.5 m²

Total area: 530.6 m²

Edited July 8, 2012 by morten