1. Give some examples of properties of triangles that don't change if you make the triangle bigger or smaller or turn it on its side.
2. Make sure you can draw, identify and/or make on a geoboard grid triangles in each of the categories where it's possible to make such a triangle.
| Acute | Right | Obtuse | |
| Scalene | |||
| Isosceles | |||
| Equilateral |
3. Which special triangle is it impossible to make on a geoboard?
4. What's wrong with saying the length of this side of the triangle (the one on the right) is 2? 5. What's wrong with saying the length of this side of the triangle (the one on the top) is 5? |
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6. What are some other names besides "square" that are correct for shape P? 7. What are some of the other names besides "rectangle" that are correct for shape Q? |
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8. What is a rhombus?
9. What is a parallelogram?
10. What is a trapezoid?
11. Draw 3 different shaped examples of trapezoids.
12. Draw a set (Venn) diagram that shows how squares and rectangles are related.
13. Draw a set (Venn) diagram that shows how rhombi and parallelograms are related.
14. Draw a set (Venn) diagram that shows how rhombi and rectangles are related.