Select the Venn diagram that best represents the relationship between the following classes.
Squares, Quadrilaterals, Rectangles
Answer & explanation
Correct answer: option 3
The correct answer is Option (3) →
In a Venn diagram two circles overlap when some members belong to both classes, one circle lies inside another when every member of the first belongs to the second, and circles stay apart when the classes have no common member.
A square has four equal sides and four right angles, so every square is a rectangle: the square circle lies inside the rectangle circle
Every rectangle has four sides, so every rectangle is a quadrilateral: the rectangle circle lies inside the quadrilateral circle
Three circles, one inside another, as in Option (3)
