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Lines which cross at right angles are said to be?
perpendicular to each other
What is the opposite angles formed by the intersection of two lines?
They are equal opposite vertical angles and if the lines are perpendicular to each other then 90 degree angles are formed.
Alternate exterior angles?
Two angles that are congruent to each other and are on opposite sides of the parellel lines
How many parallel lines are there in a heptagon?
A heptagon contains zero parallel lines. All of the lines in a regular heptagon with all sides and angles equal are at different angles from each other.
What are cooresponding angles?
cooresponding angles are created where a transversal crosses other (usually parallel) lines. the cooresponding angles are the ones at the same location at each intersection.
What are lines at right angles to each other?
They are perpendicular lines
What are lines drawn at right angles to each other?
They are perpendicular lines
What is the two lines called that intersect at right angles?
They are called perpendicular lines that intersect each other at right angles.
What are two lines in the same plane that intersect at right angles?
Perpendicular lines intersect each other at right angles.
What are Lines that cross each other?
intersecting lines...
Lines the will intersect at a right angle?
Perpendicular lines intersect each other at right angles
What do right angles mean in maths?
right angles are perpendicular lines that intercept each other at right angles which is 90 degrees
What are two lines that are at right angles to each other?
Perpendicular.
What are lines in a plane that cross or intersect each other?
Lines that that intersect each other at right angles on a plane are perpendicular lines.
Are lines in a plane that cross or intersect each other?
Lines that that intersect each other at right angles on a plane are perpendicular lines.
Where does perpendicular lines intersect?
Perpendicular lines intersect at right angles to each other.
What are two lines that are right angles to each other?
They are said to be perpendicular.
