I will mark you as BRAINLIEST if you give me the correct answer in details Do 9, 11, 12, 13

PLEASE GIVE ALL DETAILS

The answer is below

Step-by-step explanation:

9) The area of the platform = length * width = 9 m * 12 m = 108 m²

Area = 108 m²

11) 1 km² = 1 km × 1 km = 1000 m × 1000 m = 1000000 m²

But 1 hectare = 10000 m², hence:

1000000 m² = 1000000 m² / 10000 m² per hectare = 100 hectares

1 km² = 100 hectares

12) Area of each paper = 16 cm * 12 cm = 192 cm²

There are 48 sheets, hence:

Total area of sheets = 192 cm² * 48 = 9216 cm²

13) Area of each tile = 12 cm * 10 cm = 120 cm²

The kitchen contains 500 tiles, therefore:

Area of kitchen = 120 cm² * 500 tiles = 60000 cm²

1 m² = 10000 cm²

60000 cm² = 60000 cm² / 10000 cm² per m² = 6 m²

Area of kitchen = 6 m²

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step-by-step explanation: