Find the area of the purple shaded region
[2533] Find the area of the purple shaded region - Find the area of the purple shaded region. Express result to the accuracy of 3 decimal. - #brainteasers #math - Correct Answers: 45 - The first user who solved this task is Sanja Šabović
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Find the area of the purple shaded region

Find the area of the purple shaded region. Express result to the accuracy of 3 decimal.
Correct answers: 45
The first user who solved this task is Sanja Šabović.
#brainteasers #math
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Generation gap?

During one "generation gap" quarrel with his parents young Michael cried, "I want excitement, adventure, money, and beautiful women. I'll never find it here at home, so I'm leaving. Don't try and stop me!"

With that he headed toward the door. His father rose and followed close behind.

"Didn't you hear what I said? I don't want you to try and stop me."

"Who's trying to stop you?" replied his father. "If you wait a minute, I'll go with you."

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Alkali Works Act pollution control

In 1863, the Alkali Works Act was passed in Britain, effective 1 Jan 1864, to limit the extensive environmental damage caused by atmospheric pollution from industrial alkali works in the English counties of Lancashire and Cheshire. The Act successfully enforced “the more effectual condensation of muriatic acid gas” (hydrochloric acid, HCl). In the era before electrolysis, alkali was manufactured by reacting salt with sulphuric acid, which produced HCl gas as an unwanted byproduct, released from tall chimneys intended to disperse the noxious vapours by dilution over a wide area. So this severely damaged the vegetation in a wide area. Buildings and iron structures were corroded. In the 1840s in the Merseyside area alone, an estimated 60,000 tons of the pollutant was released. The Act required a 95% reduction.«
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