Answer:
225 m²
Explanation:
5 grid lengths = 25 m
1 grid = 25 m²
Number of full black grids : 5
Number of half black grids : 8
(5 × 25 m²) + (8 × 12.5 m²) = 125 m² + 100 m² = 225 m²
4.5m questions
5.8m answers