Some Venn diagram practice problems answers:
Put lettered shapes from the lettered shape page on Venn diagrams showing the relationships between:
Note: This is new and has not been double checked--if you think you've found an error please let me know!
1. Scalene and acute triangles (universe: triangles)
2. trapezoids and rhombi (universe: quadrilaterals)
3. kites and rectangles (universe: quadrilaterals)
4. rhombi and squares (universe: quadrilaterals)
5. convex shapes and parallelograms(universe: quadrilaterals)
6. concave shapes and hexagons (hexagons are polygons with 6 sides--not necessarily regular or convex) (universe: polygons)
7. regular shapes and quadrilaterals (universe: polygons)