Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
36 Cards in this Set
- Front
- Back
|
two-dimensional figure
|
a flat shape that has length and width
|
|
|
three dimensional figure
|
a solid shape that has length, width, and height
|
|
|
face
|
a flat surface of a solid figure
|
|
|
edge
|
the line where two faces of a solid figure meet
|
|
|
vertex
|
a corner where three or more edges meet on a solid figure
|
|
|
parallel lines
|
lines that never cross and stay the same distance apart
|
|
|
intersecting lines
|
lines that cross each other
|
|
|
right angle
|
a 90° angle (shaped like a capital L)
|
|
|
perpendicular lines
|
intersecting lines that cross to form 90° angles
|
|
|
acute angle
|
an angle that is less than 90°
|
|
|
obtuse angle
|
an angle that is greater than 90° but less than 180°
|
|
|
diagonal
|
slanting lines that are not horizontal or vertical
|
|
|
line of symmetry
|
an imaginary line that divides a shape into 2 exactly alike parts
|
|
|
polygon
|
a closed flat figure with straight lines
|
|
|
regular polygon
|
a polygon with sides the same length and congruent angles
|
|
|
irregular polygon
|
a polygon with sides that are not all the same length
|
|
|
triangle
|
a three-sided polygon
|
|
|
quadrilateral
|
a four-sided polygon
|
|
|
trapezoid
|
a quadrilateral with one pair of parallel sides
|
|
|
parallelogram
|
a quadrilateral with two pairs of parallel sides
|
|
|
rectangle
|
a parallelogram with four right angles
|
|
|
rhombus
|
a parallelogram with four sides the same length
|
|
|
square
|
a rectangle with four sides the same length
|
|
|
pentagon
|
a five-sided polygon
|
|
|
hexagon
|
a six-sided polygon
|
|
|
octagon
|
an eight-sided polygon
|
|
|
rectangular prism
|
a solid figure with six faces that are rectangles
|
|
|
pyramid
|
a solid pointed figure with a flat polygon base
|
|
|
cone
|
a solid pointed figure with a flat round base
|
|
|
cylinder
|
a solid figure that is shaped like a can
|
|
|
sphere
|
a solid figure that is shaped like a round ball
|
|
|
similar figures
|
figures that are the same shape but have different sizes
|
|
|
transformation
|
a change in the position of a shape
|
|
|
reflection
|
(flip) moving a figure to a new position by "flipping" it over a line
|
|
|
rotation
|
(turn) moving a figure to a new position by "turning" it around a point
|
|
|
translation
|
(slide) moving a figure to a new position without flipping or turning
|
