The unknown term that is being asked for this item is an ANGLE. This defined geometric term is formed when two rays combined at a common point usually called the vertex. The combining rays are called sides. The types of angles are acute, right, obtuse, straight, reflex, etc depending on its measure.
Answer:
6/5
Step-by-step explanation:
(4/7) divided by (10/21) = (4/7) * (21/10) = (3*4)/10= 6/5
