Home
Subjects
Create
Search
Log in
Sign up
Upgrade to remove ads
Only $2.99/month
Math
Geometry
Math Vocab
STUDY
Flashcards
Learn
Write
Spell
Test
PLAY
Match
Gravity
Terms in this set (39)
Acute angle
an angle that measures greater than 0 degrees and less than 90 degrees
Obtuse angle
An angle that measures more than 90 degrees but less than 180 degrees
Point
An exact location in space, it has no size and it has no shape
Line
This is a straight path that has no thickness and extend infinitely in opposite directions
Plane
a flat surface that has no thickness and extends infinitely in all directions
Line segment
A part of a line extends from one point to another
Ray
A part of a line that has one endpoint and extends infinitely in the opposite direction
Congruent
Geometric figures that have the same angle measure and exact same shape
Tick marks
Matching ______________________ make the sides the same length if the sides are have them
Angle
Two rays that are connected at an end point
Vertex
A endpoint of two rays
Measure
The M before the angle and is in degrees
protractor
A tool to measure the degrees of an angle
Right angle
an angle that measures 90 degrees
straight angle
an angle that measures 180 degrees
complementary angles
two angles that add up to 90 degrees exactly
supplementary angles
two angles that add up to 180 degrees exactly
Adjacent
angles that share a ray
vertical angles
when two lines meet at a point, the angles that are opposite
intersecting lines
two lines that meet in the same plane and that meet at a point
Perpendicular lines
two lines that meet in the same plane to form four right angles
perpendicular symbol
┴
Parallel lines
Two lines in the same plane that never meet
parallel symbol
||
Transversal
line that cuts two other lines
corresponding angles
must be on the same side of parallel and transversal
skew lines
not in the same plane, so they are not parallel and do not intersect
alternating interior angles
They are congruent and They are inside the parallels and alternate across the transversal.
alternating exterior angles
They are congruent and they are outside the parallels and alternate across the transversal.
scalene
a triangle with no congruent sides
isosceles
a triangle that has two congruent sides
equilateral
a triangle with three congruent sides
Adjacent angles
Two angles that share a common side and a vertex and DO NOT overlap.
congruent symbol
≅
right angle symbol
square
angle symbol
∠
right triangle
a triangle with one 90 degrees angle
acute triangle
A triangle with 3 0 degrees-90 degrees angles
obtuse triangle
a triangle with one 90 degrees-180 degrees angle
You might also like...
Shapes and Designs Vocab Study Guide
25 terms
4th Grade Geometry Terms
17 terms
Geometry Terms (Stiffler Advanced Class)
71 terms
Yr 7 Angles and Shapes - Chapter 8 - Key Words p 4…
42 terms
Other sets by this creator
Spainsh Vocab
25 terms
Vocab for conformation
23 terms
TOB All Got Its
41 terms
TOB chap. 5-8
15 terms