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math vocab
Question | Answer |
---|---|
line segment | part of a line and has 2 endpoints |
ray | part of a line. it has only one end point and extends and forever in one direction |
parallel lines | never cross and stay the same distance apart |
intersecting lines | pass through the same point |
perpendicular lines | intersecting lines that form square corners |
point | an exact location in space |
line | a straight path of points that goes on forever in two directions |
planangle | an endless flat surface |
vertex | common endpoint |
protractor | to measure and draw angles |
degrees | angles are measured in |
acut angle | has ameasure between 0 and 90 |
right angle | has a measure of 90 |
obtuse angle | has a mesure between 90 and 180 |
straight angle | has a measure of 180 |
polygon | closed plane figure made up of line segments |
regular polygon | sides of equal length and angles of equal measure |
triangle | has 3 sides |
quadrilateral | has 4 sides |
pentagon | has 5 sides |
hexagon | has 6 sides |
octagon | has 8 sides |
equlateral triangle | all sides are the same length |
isosceles triangle | two sides are same length |
scalen triangle | no sides are the same length |
right triangel | one angel is a right angle |
acute triangel | all three are acut angles |
obtuse triangle | one angle is an obuse angle |
parallelogram | both paris of opposite sides parallel and equal in length |
trapezoid | only one pair of parallel sides |
rectangle | a parallalgram with four right angles |
rhombus | a parallelogram with all the sides same length |
square | a rectangle with all sides the same length |
plane | an endless flat surface |