Noun
That branch of mathematics which treats of the relations of the sides and angles of triangles, which the methods of deducing from certain given parts other required parts, and also of the general relations which exist between the trigonometrical functions of arcs or angles.
A treatise in this science.
Source: Webster's dictionaryA surprise trigonometry quiz that everyone in class fails? Must be in the Lord's plan to give us challenges. Nicholas Sparks
Why should the typical student be interested in those wretched triangles? ...He is to be brought to see that without the knowledge of triangles there is not trigonometry; that without trigonometry we put back the clock millennia to Standard Darkness Time and antedate the Greeks. George Pólya
Can you imagine young people nowadays making a study of trigonometry for the fun of it? Well I did. Clyde Tombaugh
I'm an artist; I'm not going to use trigonometry. Taylor Momsen
Spherical trigonometry and certain other theorems, to which the author has added a new one of frequent application, then serve for the solution of the problems which the comparison of the various directions involved can present. Carl Friedrich Gauss
She can tell you the height of the attacker from the trigonometry of the blood spatter, while I'm fuzzy on what trigonometry is. Ilona Andrews