Mathematics for IGCSE & O level - Pythagoras' Theorem And Trigonometry (Section 4 - No. 48)
What does the term 'opposite' refer to in a right-angled triangle, relative to a given angle?
The side next to the angle.
The side across from the angle.
The hypotenuse.
The right angle.
Explication
The opposite side is the side that does not touch the angle in question, and is not the hypotenuse.