Answer:To determine how much water Mang Ambo needs to fill the pond, we first need to understand the dimensions of the pond based on the given edge of 30 dm.Assuming the pond is a square shape (since only the edge length is provided), the formula for the volume of a cube (or cuboidal pond) is:1. Convert the edge length into meters (if necessary):30 dm = 3 meters (since 1 dm = 0.1 m).2. Calculate the volume:\text{Volume} = 3 \, \text{m} \times 3 \, \text{m} \times 3 \, \text{m} = 27 \, \text{m}^33. Convert cubic meters to liters (since 1 cubic meter is equal to 1,000 liters):27 \, \text{m}^3 \times 1,000 \, \text{liters/m}^3 = 27,000 \, \text{liters}Therefore, Mang Ambo needs 27,000 liters of water to fill the pond.If the pond is not a cube and has a different shape (like a rectangle), we would need the additional dimensions (length and width) to calculate the volume accurately. If you need more assistance with specific pond shapes or additional details, let me know!