Angles and Construction Vocabulary

transversal

a line that intersects two or more lines

corresponding

Angles formed by a transversal cutting through 2 or more lines that are in the same relative position.

parallel

Two lines that will never intersect.

scalene

a triangle with no congruent sides

right triangle

A triangle that has a 90 degree angle.

isosceles

A triangle that has 2 equal sides.

equilateral

Having all sides equal

obtuse angle

An angle that measures more than 90 degrees but less than 180 degrees

acute angle

an angle that measures less than 90 degrees

vertex

A point where two or more straight lines meet.

complimentary angles

Angles that add up to 90 degrees

straight angle

an angle that measures 180 degrees

reflection

A transformation that "flips" a figure over a mirror or reflection line.

vertical angles

A pair of opposite congruent angles formed by intersecting lines

supplementary angles

Two angles whose sum is 180 degrees