BRAIN TEASERS

enter your answer and press button OK

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

Register with your Google Account and start collecting points.

Check your ranking on list.

Don't text me while i'm in the middle of texting you

Don't text me while i'm in the middle of texting you. Now i have to change my whole text.

Jokes of the day - Daily updated jokes. New jokes every day.

Follow Brain Teasers on social networks

Brain Teasers

puzzles, riddles, mathematical problems, mastermind, cinemania...

John Mayow

Born 24 May 1640; died Sep 1679 . English physiologist and chemist who, about a hundred years before Joseph Priestley and Antoine-Laurent Lavoisier, identified spiritus nitroaereus (oxygen) as a distinct atmospheric entity. He further recognized the role of oxygen in the combustion of metals. His medical writings include a remarkably correct anatomical description of respiration.[Date of birth 24 May 1640 given by EB and Chambers Dict. of Sci., but DSB gives Dec 1641. Date of death Sep 1679 given by Chambers and DSB but EB gives Oct 1679.]

This site uses cookies to store information on your computer. Some are essential to help the site properly. Others give us insight into how the site is used and help us to optimize the user experience. See our privacy policy.