On angles arms is the term used to describe lines.
Perpendicular lines that that intersect at 90 degrees are right angles.
The term that describes two coplanar lines that do not intersect is "parallel lines." These lines maintain a constant distance from each other and will never meet, regardless of how far they are extended in either direction.
concave
Lines that intersect at a 90-degree angle are described as being "perpendicular." This term is used in geometry to indicate that the two lines meet at a right angle, forming a square corner. Perpendicularity is an important concept in various mathematical applications and constructions.
operational definition
coplanar
Answer this question… What term describes groups of lines in a poem that are separated from each other by a space?
Perpendicular lines that that intersect at 90 degrees are right angles.
intersecting lines
cleavage
The term that describes two coplanar lines that do not intersect is "parallel lines." These lines maintain a constant distance from each other and will never meet, regardless of how far they are extended in either direction.
concave
In math when 2 polygons have the same angles, lines and size, they would be congruent.
fault lines
The term that describes the outline of an object is "contour." It refers to the outer edge or silhouette of a shape or form. Contour lines are often used in art and design to define the shape and structure of an object.
Prompt best describes it
concave