click below
click below
Normal Size Small Size show me how
geometry vocabulary
math
Question | Answer |
---|---|
acute angle | angle with a measure between 0 and 90 degrees |
acute triangle | has 3 acute angles |
adjacent angles | shares a vertex and a side but have no interior points in common |
angle | formed by 2 rays with a common endpoint(vertex) |
angle bisector | ray that divides an angle into angles of ewual measures |
arc | part of a circle |
central angle | an angle whose vertex is the center of a circle sum=360 |
chord | segment that has both endpoints on the circle |
circle | set of points in a plane that are all the same distance |
circle graph | graph of data where the circle represents the whole |
compass | geometric tool used to ddraw circles or acrs |
complementary | some adds up to 90 degrees |
congruent angles | have the same measure |
congruent polygons | 2 polygons are congruent if they have exactly the same shape and size |
congruent sides | has the same length |
decagon | 10-sided polygon |
diameter | segment that passes throught the center of a circle and has both endpoints on the circle |
perpendicular bisector | segment bisector that is perpendicular to the segment |
regular polygon | polygon with all the sides and angles are congruent |
segments | has 2 endpoints and all the points of the line between the endpoints |
segment bisector | a line, segment, ir ray that goes throught the midpoint of a segment |
skew lines | lie in different planes neither parallel nor intersecting |
straight angle | angle of 180 degrees |
isoscles triangle | triangle with atleast 2 congruent sides |
scalene triangle | triangle with no congruent sides |
equilateral triangle | 3 congruent sides |
hexagon | 6-sided polygon |
intersecting lines | 2 or more lines that cross eachother |
irregular oolygon | measure greater than 90 but less than 180 degrees |
line | series of points that extends in 2 opposite directios without an endpoint |
midpoint | the point that divides the segment into 1 segments of equal length |
obtuse angle | angle measure greater than 90 but less than 180 |
obtuse triangle | polygon, sides and or angles that aren't all congruent |
octagon | 8-sided polygon |
parallel lines | lines in the same plane that never intersect |
parallelogram | quadrilateral with both pairs of opposite sides parallel |
pentagon | 5-sided |
perpendicular lines | intersect to form right angle |
plane | is a flat surface that extends indefinitely in all directions |
point | location that has no size |
polygon | closed figures formed by 3 or more lines, lines don't cross |
quadrilateral | 4-sided |
radius | segement that connects the center to the circle |
ray | one endpoint and all the points of the line on one side of the point |
rectangle | parallelogram with 4 right angles |
rhombus | parallelogram with 4 congruent sides |
right triangle | one right angle of a triangle |
square | parallelogram with 4 right angles and sides |
trapezoid | exactly 1 pair of parallel sides |