Term | Definition |
solid figure | a figure that is filled in and has length, width, and height (3 dimensional) solid figures: cube, rectangular prism, cone, cylinder, pyramid, sphere |
edge | the place where two flat surfaces of a solid figure meet |
face | the flat surface of a solid figure |
flat surface | a plane flat surface with no depth |
vertex | a point where two sides or three or more edges meet vertices = more than one vertex |
plane shape | a flat 2-dimensional figure plane shapes = square, rectangle, triangle, circle |
rectangle | a plane shape with two sets of opposite sides that are the same length |
square | a plane shape with all four sides the same length |
triangle | a plane shape with three sides |
polygon | a plane shape with three or more sides |
hexagon | a plane shape that has six sides |
parallelogram | a plane shape that has four sides the opposite sides are parallel |
parallel lines | two lines that never cross or meet |
side | a line segment that makes one part of a plane shape |
quadrilateral | all polygons that have four sides square, rectangle, trapezoid, parallelogram |
angle | two rays with the same end point; that endpoint is the vertex of the angle |
pentagon | a polygon with five sides |
row | a horizontal line of objects; line that goes from left to right |
column | a vertical line of objects; line that goes from top to bottom |
equal | to have the same amount, size, number, or value |
halves | when one whole is divided into two equal parts |
fourths | when one whole is divided into four equal parts |
thirds | when one whole is divided into three equal parts |
unequal | parts that are not equal |