Bi-
A prefix meaning "two".
Example: A Bicycle has two wheels.
Example: The Binary number system has only two digits (0 and 1).
See: Binary
- rate of return
- ratio
- rational expression
- rational function
- rational number
- ray
- real number
- reciprocal
- rectangle
- rectangular coordinates
- rectangular prism
- recurrence relation
- recurring decimal
- recursion
- recursive
- reduce
- reflection
- reflection symmetry
- reflex angle
- regrouping
- regular
- regular polygon
- regular polyhedron
- relative frequency
- relatively prime