Two tangent circles, a chord towards the tangency point and a tangent. What’s the proportion a : b in terms of radii R and r?
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The proportion a : b is √(R/(R+r)).
The steam locomotive
A jewel of the railway birth
Rack and pinion locomotive
Pulled so many wagons
And made us people happy
Very popular at altitude
They accompanied our travels
Our dreams of escape
Our love stories and our tears
The steam loco so friendly
One reply on “The steam locomotive”
My Solution to The steam locomotive, with STEWART Theorem.