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Brainy Puzzles
Puzzle Solvers: Interesting brainy puzzles shared by fellow puzzlers
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Kaustubh Katdare
Kaustubh Katdare • Sep 22, 2008

Brainy CEans - Now Crack This Puzzle!

[FONT=Verdana, Arial, Helvetica, sans-serif]Puzzle Source: Mind and Visual Puzzles and Activities that enhance critical, logical, and creative thinking skills, and keep your brain active!

The large circle below circumscribes 2 smaller circles and an isosceles triangle, as shown in the drawing. Points A, O1, O2 and B are aligned. Demonstrate that the segment O3A is perpendicular to the diameter AB.
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well by visula anyone can say that,do ya need mathematical calculations???
Kaustubh Katdare
Kaustubh Katdare • Sep 23, 2008
Because, what we see is 'not always' what you get. 😉

But in mathematics, 1+1 = 2. 😀 We just need our CEans to think!
lovely02525
lovely02525 • Sep 29, 2008
OA3 is tangent on Diameter AB.As we know any tangent on diameter making an angle of 90 or we can say its right angle

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