Question

Sets A, B, C and D are all subsets of quadrilaterals. A is the set of rhombi, B is the set of rectangles, C is the set of parallelograms, and D is the set of kites. What is the set (A $\cap$ B) $\cup$ (C $\cap$ D)?

• A. squares
• B. rectangles
• C. parallelograms
• D. rhombi

Answer 1

The correct option is D rhombi

A $\cap$ B is a set of quadrilaterals that are both rhombi and rectangles - which are squares. C $\cap$ D is a set of quadrilaterals that are both parallelograms and kites - which are rhombi. Finally, the union of squares and rhombi are... rhombi.