Neha uses 2 × (12 + 8) × 1 = 40 m² for a 1 m path along the INSIDE of a 12 m × 8 m yard. What correction does she need?

Question

Accepted Answer

Subtract 4 m²: 36 m². Inside, the long strips and short strips overlap at the 4 corners, so 4 m² is counted twice. Correct: 96 − 10 × 6 = 36 m².

Neha uses $2 \times (12 + 8) \times 1 = 40 m^{2}$ for a 1 $m$ path along the INSIDE of a 12 $m \times 8 m$ yard. What correction does she need?