How many total puzzle pieces are there?

How many total puzzle pieces are there?

• A. 8
• B. 10
• C. 12
• D. 14

Answer: (C)

Think of the puzzle as a rectangle built from a grid of pieces. The total number of pieces is simply the number of rows times the number of columns. If you can see three rows with four pieces in each row, that’s 3 × 4, which equals 12. You can also verify by counting corners, edges, and inner pieces: there are four corner pieces, six edge pieces along the sides (excluding corners), and two inner pieces, which altogether total 12. So the puzzle has twelve pieces.

Think of the puzzle as a rectangle built from a grid of pieces. The total number of pieces is simply the number of rows times the number of columns. If you can see three rows with four pieces in each row, that’s 3 × 4, which equals 12. You can also verify by counting corners, edges, and inner pieces: there are four corner pieces, six edge pieces along the sides (excluding corners), and two inner pieces, which altogether total 12. So the puzzle has twelve pieces.