Answer:To measure the volume of an irregularly shaped stone, I would use the water displacement method based on Archimedes’ principle. Fill a graduated cylinder with water and record the initial volume in milliliters (an SI unit). Fully submerge the stone in the water, ensuring no air bubbles are trapped, and note the new water level. The difference between the new and initial volumes equals the stone’s volume (e.g., if the water rises from 200 mL to 250 mL, the stone’s volume is 50 cm³, since 1 mL = 1 cm³). This method is simple, accurate for irregular shapes, and aligns with the Philippines’ use of SI units for standardized measurements.