bob012345's latest activity

It seems not necessary. For any angle configuration we get the same result.

A figure sure helps.

Here is a little puzzle from the book 100 Geometric Games by Pierre Berloquin. The side of a small square is one meter long and the...

Sometimes it's simpler to use degrees rather than radians for the measurement of angles.

Well that explains my little mystery from post #18. Here is the curve for the total area of the triangle for c=d normalized to the...

Regarding post #21, the formula given for area minimizing ##\theta## simplifies to ##\tan\theta=c/d##. The minimum area just becomes...

All right. Based on post #19, there are the next steps. $$...

Ok, if we're bringing this back, I'll share my results. In reference to the diagram in the original post, let c be the segment labeled...

There are an infinite number of solutions but for each one there is a different angle and thus a different triangle. I meant for a given...

I suppose that you use the Pythagorean theorem here. (see below) $$ \sqrt{(a+2)^2+(b+4)^2}=\sqrt{b^2+2^2}+\sqrt{a^2+4^2}\implies0=0 $$...

The way to determine ##(a,b)## uniquely is to pick an angle ##\phi##. Then we have ##b=2tan(\phi)## and ##a=4/tan(\phi)##. As ##\phi##...

Some museums specialize in WW2 stuff, like the Pacific War Museum in Fredericksburg Tx. https://www.pacificwarmuseum.org/ New York...

We wish to find the actual design to replicate it accurately.

Brand new bridge collapses in China; https://www.nbcnews.com/world/asia/nearly-2500-foot-long-bridge-collapses-china-rcna243388

Thanks. Do you have information on the power source?