Find the length of red arc AB
[2605] Find the length of red arc AB - Find the length of red arc AB (r1=1, r2=2). Express result to the accuracy of 3 decimal. - #brainteasers #math - Correct Answers: 43 - The first user who solved this task is Roxana zavari
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Find the length of red arc AB

Find the length of red arc AB (r1=1, r2=2). Express result to the accuracy of 3 decimal.
Correct answers: 43
The first user who solved this task is Roxana zavari.
#brainteasers #math
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Anniversary Flowers

A sad-faced Doug walked into a flower shop early one morning.

The clerk was ready to take his order for a funeral piece, based on the look on Doug's face, but soon realized his assumption was wrong as Doug asked for a basket of flowers sent to his wife for their anniversary.

"And what day will that be?" the clerk asked.

Glumly he replied, "Yesterday".

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Henry Chandler Cowles

Born 27 Feb 1869; died 12 Sep 1939 at age 70.American botanist who was a pioneer in the field of plant ecology, especially the concept of dynamic ecology, which he devised in the 1890's through a study of sand dune vegation at the southern end of Lake Michigan. He observed ecological succession, whereby starting with a bare habitat, there is a sequence of biological communities, each providing modification of the habitat to favour successors, until a climax community is established, characteristic of the climatic conditions of the region. His field work there showed that the vegetation at any one point in the system is related to the distance the point lies from the lake, the kind of soil present at the location, and the time period over which seeds and spores have had a chance to germinate.«
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