Charles Link's latest activity

That's a great video description of the steps needed to solve the problem, and it eliminates the complex, difficult-to-reduce equations...

@Lnewqban I didn't know the name of it, but Thales' theorem was one of a couple of things I was trying to apply to simplify things. It...

See He has kind of a simple solution. Still no hidden symmetry, but he does have a good solution. His arithmetic is kind of simple...

@Lnewqban Very good graphics. Thank you. :) I'm still looking for a simpler solution to this one. Perhaps the combination of 2,7, and...

Using another point as center of the R = 11.0 largest blue circle:

I located the center of the R = 11.0 largest blue circle at the point I knew with certainty, which was the interception of the of the R...

Graphically, x = 7.00

You got the right idea, and I was able to solve it. However, I am rather puzzled why the final answer, when the problem is so...

In the original problem, x is in between the 2 and the 11, but mathematically it makes no difference. Thank you @kuruman :) and what...

Is this it?

I am all thumbs with computer graphics. Hopefully the explanation is clear enough to follow. :) The original problem was on-line on...

The problem is to find x. In the lower semi-circle they had one half of a regular hexagon with all 3 sides of length x, so that says...

Writing law of cosines twice ## 11^2=2r^2(1-\cos(\theta)) ## and ## 2^2=2r^2(1-\cos(120-\theta)) ## and trigonometric expansion on ##...

I think you mean a 6-sided polygon inscribed in a circle of radius 7. Folks solve it by determining the central angles and determine...

Seemingly by some mathematical coincidence, a hexagon of sides 2,2,7,7, 11, and 11 can be inscribed in a circle of radius 7. The other...