base
bisector
Base of a trapezoid is a geometry term. It starts with the letter b.
Brain is a body part that starts with the letter "b."
Bow.
brain and bone
yeah but this is all i foundWedge- - part of a circle containing its center and an arcsource:http://library.thinkquest.org/2647/geometry/glossary.htm#b
The butt is a body part that starts with b.
There are a few body parts that start with the letter B. One body part that starts with B is bicep.
fraction.
elliptic - a kind of non-Euclidean geometry.
Barley is a cereal crop beginning with B.
There are no geometry terms that start with the letter J. Geometry deals with the spatial relationships of objects.