Find the area (A=?) of the s...
[2571] Find the area (A=?) of the s... - Find the area (A=?) of the shaded square if length of red line p=51. Express result to the accuracy of 3 decimal. - #brainteasers #math #riddles - Correct Answers: 39 - The first user who solved this task is Manguexa Wagle
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Find the area (A=?) of the s...

Find the area (A=?) of the shaded square if length of red line p=51. Express result to the accuracy of 3 decimal.
Correct answers: 39
The first user who solved this task is Manguexa Wagle.
#brainteasers #math #riddles
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I finally got one over

The other day, Louise and I got into some petty argument. (I say it was petty. She would have said it was Armageddon.) As is our nature, neither of us would admit the possibility that we might be in error.
To her credit, Louise finally said, 'Look. I'll tell you what. I'll admit I'm wrong if you admit I was right.'
'Fine.' I said.
She took a deep breath, looked me in the eye and said, 'I'm wrong.'
I grinned and replied, 'You're right.'

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Dirigible

In 1852, a new invention, the dirigible - a semi-rigid airship - was demonstrated in a flight from Paris to Trappe. Henri Giffard (1825-82) installed a small (3 h.p.) steam engine of his own design in the gondola of a 147-foot-long spindle shaped coal-gas balloon. This engine turned a 11 ft propeller producing a speed of 5 mph against the wind over a distance of 17 mile on a 3 hour trip. This was the first powered and controlled flight ever achieved. (In 1858 he patented a steam injector which became widely used in locomotives, making him rich. Nevertheless, Giffard was depressive and died by suicide in 1882, but left his fortune for humanitarian and scientific purposes.)
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