Visual Matrix Completion Flashcards

In a 3×3 matrix, each row contains a circle, a square, and a triangle. The first row is: circle, square, triangle. The second row is: square, triangle, circle. What shape belongs in the bottom-right cell of the third row if the third row starts with: triangle, circle, ___?

Answer: Square

Each row is a rotation of the three shapes (circle, square, triangle). The third row has triangle and circle, so the missing shape must be square.

A 3×3 matrix shows shapes that increase by one side per column: column 1 = triangles (3 sides), column 2 = squares (4 sides), column 3 = pentagons (5 sides). The shading alternates row by row: row 1 = filled, row 2 = outlined, row 3 = filled. What is the missing bottom-right cell?

Answer: Filled pentagon

Bottom-right is column 3 (pentagon) and row 3 (filled). Therefore the answer is a filled pentagon.

In a 3×3 matrix, the number of dots in each shape increases by 1 across each row (1, 2, 3) and each column also increases by 1 (1, 2, 3). The center cell has 4 dots. The top-right cell has 3 dots. How many dots does the bottom-left cell have?

Answer: 3

Row 3 starts at 3 (bottom-left), 4 (bottom-center), 5 (bottom-right). But wait — in a matrix where rows are 1-2-3, 2-3-4, 3-4-5, the bottom-left (row 3, col 1) = 3.

A 3×3 matrix shows arrows. In each row, the arrow rotates 90° clockwise from cell to cell. Row 1: →, ↓, ←. Row 2: ↑, →, ↓. Row 3: ←, ↑, ___. What completes row 3?

Answer: →

Each row rotates 90° clockwise. Row 3 starts with ← (180°), then ↑ (270°), so the next is → (360°/0°).

A 3×3 matrix has shapes of three sizes: small, medium, large. Each row contains one of each size. Each column also contains one of each size. The top row is: small circle, medium circle, large circle. The middle row is: large circle, small circle, medium circle. What size circle goes in the bottom-left cell?

Answer: Medium

Column 1 has small (row 1) and large (row 2), so row 3 must be medium. This also satisfies the row constraint (bottom row needs medium).

In a 3×3 matrix, each cell contains a number equal to the sum of its row number and column number (rows and columns numbered 1–3). The top-left cell (row 1, col 1) = 2. The center cell (row 2, col 2) = 4. What is the value in the bottom-right cell (row 3, col 3)?

Answer: 6

The rule is row + column. Row 3 + Column 3 = 3 + 3 = 6.