Geometry anyone

[happy daze john in oz]

A bit of a Trigy one this, but I am sure the navigators and some others may get it.

What is

SOA CAH TOA

[j.sabourn]

SOH RAY MEE In Cantonese ? JS

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Assuming I’ve got it wrong , what is a sidereal day. JS

[Ivan Cloherty]

One hole higher in Chinese!

[Doc Vernon]

The Geometric system of working out different Triangles!

eg" A 30° triangle has a hypotenuse (the long side) of length 2, an opposite side of length 1 and an adjacent side of √3

Cheers

[j.sabourn]

And a Sidereal day is 23 hours 56 minutes and 24 seconds . And the square of the hippopotamus is equal to double that of its wife. JS

[Mo Docherty]

https://www.youtube.com/watch?v=PIWJo5uK3Fo AHAHAHAHAH

[happy daze john in oz]

Vernon close.
Put you all out of your misery.

It is from Trigonometry

SOA
Sine is Opposite over Adjacent
CAH
Cosine is Adjacent over Hypotenuse
TOA
Tangent over Adjacent.

I was not good at Geometry at school, had me going round in circles, could not get the angle of it.
But Trigonometry was great, could work out the height of a tree without going up there with a stick of inches to measure with.

[j.sabourn]

You would have liked Spherical Trigonometry then John , plane trig the 3 angles = 180 degrees . Spherical trig 3 angles can make up anything between 180 degrees and 540 degrees . Would just be going round in bigger circles . JS.
Isn’t the first one in plane trig opposite over hippopotamus ? And 3rd one opposite over adjacent ? JS

[happy daze john in oz]

I learned about that stuff at Terch school at the tender age of about 13 or so.
I also discovered with the biology classes the difference between male and female.
For most of us we already knew as much as the teacher, but it was still fun.

I was still going round in circles, but now chasing the girls, Trig was no longer so interesting.

[j.sabourn]

Here’s one that every navigator knows and will take you anywhere in the world , if you have a sextant, a chronometer , an Almanac and a set of log tables.
Haversine ZX= Hav.LHA Cosine Lat, Cosine Dec + (hav.L Diff dec).
JS
Re biology what was the fish that the male gave birth and not the female ? JS
It’s not the Jew fish ,