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Whos good at working out areas?

Started by Speedy1959, Sunday, 01 September 2019, 03:29 AM

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Speedy1959

Hi you Brain boxes..

I have to work out the m2 of the floor area in a store room at work..
The "Powers that be" wish to know..
Can any of you lot do the maths to work out the area please?
I know its not bike related (That's why its in the "off topic" section)..

Any help appreciated

Now where is Andre ?? :)

Photo below:

Andre

The area is 51.63 m2

For the formula to work 2 opposite angles have to be known. I used GIMP to get the angles and plugged the data in an online calculator. https://keisan.casio.com/exec/system/1322718508 See attached screen shots as well.

Monarchjock

In this particular case where one angle is a right angle, draw a line from the bottom right corner to the top of the 1.47 length. This creates two triangles. It's easy to work out the area of the bottom triangle.
1/2*1.47*11.13 = 8.181

The area of the new upper triangle can be worked out using Heron's formula.

https://www.mathopenref.com/heronsformula.html

The unknown length uses Pythgoras Theorem to work it out.
Sqrt(1.47*1.47+11.13*11.13)= 11.226
Put 11.226, 9.84, 9.3 into the Heron Formula =43.456
Therefore total area = 43.456 + 8.181 = 51.637

Which agrees with Andre. :cheers:

Notty

After using numerous equations and formula I reckon its a big area  :)
The older I get the better I was
The problem with retirement is that you cant take a day off

Monarchjock

Was that the Big Room Equation,  Notty?  :rofl2:

Speedy1959

Blime Monarchjock
I am very impressed.
Thank you for your efforts
Brilliant mate.

S.

Speedy1959

Thanks to you as well Andre.
Sorry I looked at the forum on my phone and without glasses so I missed your response initially. Sorry.

Thanks for your efforts.

S.

Notty

Quote from: Monarchjock on Sunday, 01 September  2019, 05:53 AM
Was that the Big Room Equation,  Notty?  :rofl2:
A-B = the square on the hippopotamus is equal to the sum of the Giraffe and Elephant squared minus your age
divide by the size of your bike !  :)
The older I get the better I was
The problem with retirement is that you cant take a day off

KiwiCol

Quote from: Notty on Sunday, 01 September  2019, 06:25 AM
Quote from: Monarchjock on Sunday, 01 September  2019, 05:53 AM
Was that the Big Room Equation,  Notty?  :rofl2:
A-B = the square on the hippopotamus is equal to the sum of the Giraffe and Elephant squared minus your age
divide by the size of your bike !  :)
That's cheating Notty, you only know that cause Mrs Notty was a teacher & I bet she told you.
😎  Always looking for the next corner.  😎

Tony Nitrous

Quote from: Notty on Sunday, 01 September  2019, 06:25 AM
Quote from: Monarchjock on Sunday, 01 September  2019, 05:53 AM
Was that the Big Room Equation,  Notty?  :rofl2:
A-B = the square on the hippopotamus is equal to the sum of the Giraffe and Elephant squared minus your age
divide by the size of your bike !  :)

The angle of the dangle x the heat of the meat = the mass of the ass ?
.

lawrie

Just drew the shape/angles etc on CAD & mine came out at 52.426 sq m    Different again. :bugga:
I DO have to grow old, I DO NOT have to grow up.

Tony Nitrous

I don't think there is enough info in the original post unless you confirm the angle of the bottom left hand corner is 90 degrees.

.

Andre

Quote from: lawrie on Sunday, 01 September  2019, 07:20 AM
Just drew the shape/angles etc on CAD & mine came out at 52.426 sq m    Different again. :bugga:

Shaky hand/mouse syndrome or you did not account for the windowsill :rofl2:

Seriously, any will be more than fine. I doubt the "powers to be" want to know the square micrometer.

Speedy1959

Quote from: KiwiCol on Sunday, 01 September  2019, 06:38 AM
Quote from: Notty on Sunday, 01 September  2019, 06:25 AM
Quote from: Monarchjock on Sunday, 01 September  2019, 05:53 AM
Was that the Big Room Equation,  Notty?  :rofl2:
A-B = the square on the hippopotamus is equal to the sum of the Giraffe and Elephant squared minus your age
divide by the size of your bike !  :)
That's cheating Notty, you only know that cause Mrs Notty was a teacher & I bet she told you.

Oooh I wonder if she "disciplins" him ??  :P

KiwiCol

I bet he does get a clip round the ear from time to time.
😎  Always looking for the next corner.  😎

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