Find the area of the black region
[2917] Find the area of the black region - Find the area of the black region accurate up to 3 decimal places. (A=?, a=20, b=10) - #brainteasers #math #riddles - Correct Answers: 39 - The first user who solved this task is Sanja Šabović
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Find the area of the black region

Find the area of the black region accurate up to 3 decimal places. (A=?, a=20, b=10)
Correct answers: 39
The first user who solved this task is Sanja Šabović.
#brainteasers #math #riddles
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Two men went bear hunting. Whi...

Two men went bear hunting. While one stayed in the cabin, the other went out looking for a bear.

He soon found a huge bear, shot at it but only wounded it. The enraged bear charged toward him, he dropped his rifle and started running for the cabin as fast as he could.

He ran pretty fast but the bear was just a little faster and gained on him with every step.

Just as he reached the open cabin door, he tripped and fell flat.

Too close behind to stop, the bear tripped over him and went rolling into the cabin.

The man jumped up, closed the cabin door and yelled to his friend inside, "You skin this one while I go and get another!"
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Telephone fax

In 1922, city telephone lines were used for the first time in the U.S. for the transmission of a facsimile photo in Washington, DC. Charles F. Jenkins sent an image from 1519 Connecticut Ave to the U.S. Navy Radio Staion NOF at Anacostia, D.C. Witnesses from the U.S.Navy and the Post Office Dept. attended the transmission. A photographic plate was used to record the signals at 5502 16th St, N.W. Washington, D.C. Earlier in the year, on 11 Jun 1922, a photograph had been sent by radio across the Atlantic from Rome to Bar Harbor, Maine. That transmission reproduced a 7 x 9.5 in. halftone picture, using light falling on a selenium cell to form the dots.
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