In the following question, group the given figures into three classes using…
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In the following question, group the given figures into three classes using each figure only once.
Group the given figures into three classes using each figure only once.
- A.
1,4,7 ; 2,5,8 ; 3,6,9
- B.
1,4,7 ; 2,5,9 ; 3,6,7
- C.
1,3,4 ; 2,5,8 ; 6,7,9
- D.
1,2,3 ; 4,5,6 ; 7,8,9
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Show answer & explanation
Correct answer: A
Final grouping: Quadrilaterals (two-dimensional four-sided figures): 1, 4, 7; Three-dimensional solids: 2, 5, 8; Triangles (two-dimensional three-sided figures): 3, 6, 9.
Quadrilaterals — figures 1, 4, 7: Each of these is a flat shape with four sides (examples: square/diamond, rectangle, rhombus).
Three-dimensional solids — figures 2, 5, 8: Each drawing represents a solid with depth (for example, a curved bowl-like solid, a cylinder, and a rectangular prism), shown using perspective or curved surfaces.
Triangles — figures 3, 6, 9: Each is a flat shape with three sides (various triangle types).
Why this is correct:
Each group is formed by a single clear geometric property (number of sides for flat shapes, or presence of three-dimensional depth for solids).
Every figure appears exactly once across the three groups, so the classification is complete and non-overlapping.
Other proposed groupings fail because they either repeat a figure, omit a figure, or mix different geometric types in the same group.