These are phemes that affect the subskill Trigonometry. All items (4) # A B C D E F G H I J K L M N O P Q R S T U V W X Y Z Other A Angle (Pheme) D Deduction (Pheme) F Finite (Pheme) P Parallel (Pheme) Categories: Phemes - Geometry Community content is available under CC-BY-SA unless otherwise noted.