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Geometry
Stack #70568
Description | Name |
---|---|
All 3 sides are the same length. | Equilateral Triangle |
Only 2 of the 3 sides are the same length. | Isosceles Triangle |
None of the 3 sides are the same length. | Scalene Triangle |
When 2 lines meet and form a 90 degree angle. | Right Angle |
When 2 lines meet and form a less than 90 degree angle. | Acute Angle |
When 2 lines meet and form a greater than 90 degree angle. | Obtuse Angle |
A line that has 2 endpoints. | Line Segment |
A line that has only 1 end point. | Ray |
Two lines that never intersect each other. | Parallel Lines |
Two lines that intersect and form 90 degree angles. | Perpendicular Lines |
Two lines that cross and don't form 90 degree angles. | Intersecting Lines |
Two figures that are the same shape and size. | Congruent Figures |
Two figures that are the same shape but not the same size. | Similar Figures |
3 sided polygons | Triangles |
4 sided polygons | Quadrilaterals |
5 sided polygons | Pentagons |
6 sided polygons | Hexagons |
8 sided polygons | Octagons |
A closed plane figure made up of line segments. | Polygon |
A figure that has length, width, height, and volume. | Solid Figures |
A line on which a figure can be folded so that both halves are congruent. | Line of Symmetry |
Similar to a square but has no right angles and has 2 pairs of parallel sides. | Rhombus |
A figure that has only 1 pair of parallel sides. | Trapezoid |
Similar to a rectangle but has no right angles and 2 pairs of parallel sides. | Parallelogram |
To turn a plane figure over. | Flip (REFLECTION) |
To rotate a plane figure. | Turn (ROTATION) |
To move a plane figure in one direction. | Slide (TRANSLATION) |
A triangle with a right angle. | Right Triangle |
A triangle with all acute angles. | Acute Triangle |
A triangle with an obtuse angle. | Obtuse Triangle |
The common endpoints of two lines forming an angle. | Vertex (Plural - Vertices) |
The distance around a figure. (L + W + L + W = ?) | Perimeter |
The number of square units needed to cover a figure. (L x W = ?) | Area (square____) |
The number of cubic units needed to fill a solid. (L x W x H = ?) | Volume (cubic___) |
Name the 7 solids that we studied. | Sphere, Cube, Rectangular Prism, Triangular Prism, Cylinder, Pyramid and Cone |
Name the plane figue that is not a polygon. | Circle |