It's very cold today, in Melbourne. How are you?
Now, I put the solution for the problem which I showed in previous blog: "Sangaku (mathematics tablet) II".
The question was like this:
Now, I put the solution for the problem which I showed in previous blog: "Sangaku (mathematics tablet) II".
The question was like this:
See the left figure.
When the diameter of circumscribed circle (White) is given as D, Express the diameter of small circle (Red) in terms of D.
(The 4 yellow circles are congruity.)
When the diameter of circumscribed circle (White) is given as D, Express the diameter of small circle (Red) in terms of D.
(The 4 yellow circles are congruity.)
The answer is:
<The diameter of small circle (Red)> = D[(√2) – 1]²
The solution is here:
<The diameter of small circle (Red)> = D[(√2) – 1]²
The solution is here:
I will have more "Sangaku" maths problems to show. I might have some study sessions in Ringwood, Vic, Australia. Please contact me by email or SMS if you are interested.
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