arterial line in math
a line segment
a set of points consisting of two points on a line, called endpoints, and all points on the line between the endpoints
has one end point and continues infinitely in one direction; name a ray with the end point first and then any other point on the ray
<>AN ANGLE<> is an angle with less than* 90 Degrees
a zero angle
celestial object's hour angle
an acute angle
is an angle with measure between 0 and 90 degrees.
a right angle
is an angle with measure 90 degrees.
an obtuse angle
is an angle with measure between 90 and 180 degrees.
an angle of 180 degrees [an angle that is straight and never ends]
a figure formed when two rays or lines meet at the same point