Final answer:
The oval tool is most efficient for creating an outline of a ball. The volume of a water balloon and a milk carton would be measured in volume units, the length of a basketball court with a tape measure, and the weight of an apple with a scale.
Step-by-step explanation:
The most efficient tool for creating an outline of a ball depends on the program you are using, but generally, the oval tool would be the most appropriate. This is because a ball is best represented as a circle when drawn in two dimensions, and the oval tool allows you to create perfect circles by holding down the shift key while dragging the cursor. Other tools like the rectangle tool, line tool, and magnetic lasso tool are designed for different shapes and selection purposes and would not be as effective or efficient in creating a circular outline.
When it comes to measurements:
- The volume of a water balloon would be measured using a unit of volume, like liters or cubic centimeters.
- The length of a basketball court would be measured using a tape measure or a laser distance measurer for precise length measurement in meters or feet.
- The weight of an apple would be determined with a scale, and typically measured in grams or ounces.
- The volume of a milk carton would also be measured using units of volume, and might be listed on the packaging or measured using a liquid measuring cup.