Question

4 см² 25мм²=...мм² 14 м² 2 дм²=...см² 40 а=... м² 90 га=...а 1600 а=...га 14200 м²=...а

Answer 1

1. 425мм2

2.140.200см2

Answer 2

To perform the conversions, we'll use the following conversion factors:

1 m² = 10000 cm² 1 m² = 100 dm² 1 ha (hectare) = 10000 m² 1 a (are) = 100 m²

1. Converting 4 cm² to mm²: 1 cm² = 100 mm² So, 4 cm² = 4 * 100 = 400 mm².

2. Converting 14 m² 2 dm² to cm²: 1 m² = 10000 cm² 1 dm² = 100 cm² So, 14 m² = 14 * 10000 = 140000 cm² And, 2 dm² = 2 * 100 = 200 cm²

Adding them together: 140000 cm² + 200 cm² = 140200 cm².

3. Converting 40 a to m²: 1 a = 100 m² So, 40 a = 40 * 100 = 4000 m².

4. Converting 90 ga to a: 1 ga = 100 a So, 90 ga = 90 * 100 = 9000 a.

5. Converting 1600 a to ga: 1 ga = 100 a So, 1600 a = 1600 / 100 = 16 ga.

6. Converting 14200 m² to a: 1 ha = 10000 m² So, 14200 m² = 14200 / 100 = 142 a.

Summary:

1. 4 cm² = 400 mm²
2. 14 m² 2 dm² = 140200 cm²
3. 40 a = 4000 m²
4. 90 ga = 9000 a
5. 1600 a = 16 ga
6. 14200 m² = 142 a