Transcript Geometry Vocabulary Angle - A figure formed by two rays or line segments that meet at an endpoint.

Geometry
Vocabulary
Angle - A figure formed by two rays or line
segments that meet at an endpoint
Degree - A unit of measuring angles.
Also a unit for measuring
temperature.
Acute Angle – An angle that measures
less than 90⁰
Obtuse Angle – An angle that
measures greater than 90⁰
Right Angle – An angle that measures
exactly 90⁰
Polygon - A closed plane figure with
sides made of straight line segments
Acute triangle - A triangle with three
acute angles
Equilateral triangle - Having all equal
sides and angles
Obtuse triangle - A triangle with one
obtuse angle
Isosceles triangle - A triangle with at least
two congruent sides
Right triangle - A triangle with one
right angle
Scalene triangle - A triangle with no
equal sides is a scalene triangle
Parallel - Lines that extend in the same
direction and will never meet or cross
Perpendicular - Lines are considered
to be perpendicular to each other if
they form congruent adjacent angles
that are 90°
Vocabulary Word
Definition
angle
A figure formed by two rays or line segments that meet at an endpoint
degree
A unit of measuring angles. Also a unit for measuring temperature.
acute angle
An angle that measures less than 90⁰
obtuse angle
An angle that measures more than 90⁰
right angle
An angle that measures exactly 90⁰
polygon
A closed plane figure with sides made of straight line segments
Vocabulary Word
Definition
acute triangle
A triangle with three acute angles
equilateral triangle
Having all equal sides and angles
obtuse triangle
A triangle with one obtuse angle
isosceles triangle
A triangle with at least two congruent sides
right triangle
A triangle with one right angle
scalene triangle
A triangle with no equal sides is a scalene triangle
parallel
perpendicular
Lines that extend in the same direction and will never meet or cross
Lines are considered to be perpendicular to each other if they form
congruent adjacent angles that are 90°