I would use a caliper to find the diameter of the apple and multiply by pi or 3.141592653 or use a string to measure around the apple.
ounces
grams
I would use a fabric tape measure.I would use a fabric tape measure.
Definitely in meters.
You would use area. I would use the meter2. Okay
i would think you would use a tape-measure.
I would use feet
You would use a tape measure.
You would use meters.
With a scale. Mass equals weight.
explain how would measure the volume of an apple