22 Sep 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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23 Sep 2008
well by visula anyone can say that,do ya need mathematical calculations???
23 Sep 2008
Because, what we see is 'not always' what you get. 😉

But in mathematics, 1+1 = 2. 😀 We just need our CEans to think!


Branch Unspecified
29 Sep 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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