Across
- 1. of triangle
- 4. the line around of a lane figure
- 6. a triangle with all three equal sides.
- 7. Atriangle has three …
Down
- 2. a triangle which has two equal sides (wich triangle such that it has two equal sides) ?
- 3. a parallelogram whose angles are all right angles
- 5. quadrilateral in which only one pair of opposite sides are parallel