Plane figures
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20 terms
Terms | Definitions |
|---|---|
 trapezoid | a quadrilateral with only one pair of parallel sides |
| scalene triangle | a triangle with no equal sides and no equal angles |
| obtuse triangle | a triangle with one obtuse angle |
| rectangle | a parallelogram with 4 right angles |
| polygon | a figure which is made op of line segments called sides and is joined at endpoints called verticals |
| square | a rectangle with 4 equal sides |
| isosceles triangle | a triangle with two equal sides and two equal angles |
| equilateral triangle | a triangle with all sides and all angles equal |
| rhombus | a parallelogram with 4 equal sides |
| parallelogram | a quadrilateral whose opposite sides are equal |
| quadrilateral | a polygon with 4 sides |
| right triangle | a triangle with one right angle |
| Is a square a rhombus | yes |
| is a square a rectangle | yes |
| vertex | a point in a prisim where three or more planes intersect |
| net | a two-dimensional pattern of a three-dimensional figure |
| polyhedron | a solid with all polygon faces. |
| give an example of a polyhedron | cube, rectangular prism, triangular prism |
| hypotenuse | The side across from the right angle in a right triangle. It is the longest side. |
| legs | sides of right triangle that make right angle |
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