Hello, Parton-Bill!

The term "horizontal" was misused (and highly misleading) here.

I think those three lengths are simply the sides of the triangle. .**

A triangle has sides: .

Determine the angles of the triangle. Code:

B
*
* *
25.101 * * 20.998
* *
* *
* *
A * * * * * * * C
38.011

Use the Law of Cosines . . .

. .

.

. . .

~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~

**

If those were truly *horizontal distances*,

. . then is "projected" onto a horizontal line. Code:

B
*
*: *
* : *
* : *
* : * C
* : * :
* * :
* * : :
A * : :
: : :
- - * - - - * - - - * - -
A' B' C'

And we see that: .

. . . which is not true of the given segments.