Third Side Poem by John Sensele

When a right angled triangle courts its opposite side
Which entices the longish hypotenuse
A sine is born full of trigonometric pride
Whose formula non mathematicians can't use.

When a right angled triangle desires a cosine for his bride
Gestation after nine long months without an angle obtuse
Yields a trigonometric marvel that can divide
Boys and men with much cognitive ruse.

When a right angled triangle opts to ignore snide
Comments from non mathematicians who confuse
The sine rule and the cosine rule to hide
Their little knowledge, it's time to change a cranial fuse.

The cosine rule facilitates calculations of the longest side
Of a scalene triangle whose angles cruise
At great celerity to abide
By Einstein's relativity theory which offers explanations profuse.