A parabola, its symmetry axis and a tangent. Yellow connects the focus to the intersection point. Red connects the focus to the tangency point. What’s yellow : red?
Scroll down for a solution to this problem.
Solution
Yellow : red is 1 : 1.

Poem
The common focus
Is may be to improve efforts
It can be very varied
For each of us
A lifelong journey
With our encounters
Our achievments,
Failures
Our experiences
In the real
And virtual world
Building skills
And consensus
Just succeeding in living together
A huge project
