Terms : Hide Images
| 2147955926 | height | (noun) the vertical distance from top to bottom. |  | 0 |
| 2147956344 | length | (noun) the distance along a line or curve. | | 1 |
| 2147957000 | width | (noun) the distance from one side of an object to another. | | 2 |
| 2146690851 | area | (noun) the amount of surface inside a 2-dimensional shape. This can be calculated by multiplying its length by its width. |  | 3 |
| 2146888724 | surface area | (noun) the area of all the outer surfaces of something that is 3-dimensional (ex: a cube) |  | 4 |
| 2146778331 | perimeter | (noun) the length around a 2-dimensional, flat shape (ex: width + width + length + length). |  | 5 |
| 120477150 | plane shape | (noun) a flat, 2-dimensional object which does not have thickness. |  | 6 |
| 645018528 | polygon | (noun) a plane shape (2-dimensional) with straight sides, not curves. |  | 7 |
| 337741502 | polyhedron | (noun) a solid shape with no curved surfaces. |  | 8 |
| 886783978 | prism | (noun) a polyhedron with the same kind of polygon at each end. |  | 9 |
| 705597773 | pyramid | (noun) a polyhedron where the base is a polygon and the sides are triangles which meet at the top (the apex). |  | 10 |
| 879189970 | vertex | (noun) the point where sides or edges meet. |  | 11 |
| 2146948029 | net | (noun) a flat pattern that can be folded to make a model of a solid shape. |  | 12 |
| 2146981786 | solid | (noun) an object that has 3 dimensions. |  | 13 |
| 2147970634 | cube | (noun) a solid with six square faces. |  | 14 |
| 238856190 | unit cube |  | 15 | |
| 2147972845 | cylinder | (noun) a solid with two circular faces and one curved surface. |  | 16 |
| 2146987737 | volume | (noun) the amount of something inside a solid shape or container. This can be calculated by multiplying its length by its width and by its height. |  | 17 |
| 2145918623 | point | (noun) This shows an exact location. It has no size, only position. |  | 18 |
| 2145857919 | endpoint | (noun) a point at the end of a ray. |  | 19 |
| 2145938776 | line | (noun) This has no beginning point or endpoint. It continues forever in both directions. |  | 20 |
| 2145936750 | line segment | (noun) When two endpoints are connected with a straight line. |  | 21 |
| 2145836738 | ray | (noun) a part of a line that has exactly one endpoint. |  | 22 |
| 2145940469 | angle | (noun) two rays that share one endpoint. |  | 23 |
| 2147937450 | acute angle | (noun) an angle that measures less than 90 degrees. |  | 24 |
| 2147945431 | right angle | (noun) an angle that measures 90 degrees. |  | 25 |
| 2147947953 | obtuse angle | (noun) an angle that measures more than 90 degrees but less than 180 degrees. |  | 26 |
| 2147949981 | straight angle | (noun) an angle that measures 180 degrees. |  | 27 |
| 2147966470 | base | (noun) the bottom part of an object, on which it rests, or the lowest part of something. |  | 28 |
| 2147982100 | triangle | (noun) a polygon with three sides and the sum of the angles is always 180 degrees. |  | 29 |
| 35907264 | equilateral triangle | (noun) a triangle with all three sides the same length. Each angle measures 60 degrees. |  | 30 |
| 698624119 | isosceles triangle | (noun) a triangle with two equal sides and two equal angles. |  | 31 |
| 870818537 | scalene triangle | (noun) a triangle with no equal sides and no equal angles. |  | 32 |
