curtail
The most accurate opposite of retract is protract
uncompress, expand, extend, stretch, increase
No, if point C lies between points A and B, then rays CA and CB are not opposite rays. Opposite rays are defined as two rays that share the same endpoint and extend in opposite directions, forming a straight line. In this case, CA and CB extend from point C towards points A and B, respectively, but they do not extend in opposite directions from a single point.
6:00
line. :D
Opposite rays are halves of a line. There is one endpoint and the two rays extend infinitely from it in opposite directions. The endpoint can actually be any point on the line, but it can be assumed to be the midpoint.
An opposite ray is a pair of rays that share the same endpoint and extend in opposite directions. This can be visualized as two rays emanating from a common point but extending in opposite directions along the same line.
None. Muscles only contracts. In order to extend, the muscle on the opposite movement has to contract. For example, the biceps help flex the elbow, but it does not extend the elbow; the triceps does that.
Extensor muscles help to straighten or extend the joint while flexors do the opposite, bending it.
Two rays meeting at a straight angle (801 degrees).
If you draw tangents to a circle at opposite ends of a diameter, those two tangents are parallel. No matter how far you extend them, they'll never meet.
true