What you’ll learn
Apply area/volume density concepts.
Key idea
Density divides quantity by the geometric measure and keeps that measure dimension in its unit.
Divide by the supporting geometric measure and carry its dimension into the denominator.
Worked example
Classify examples and non-examples for the concept 'Apply area/volume density concepts'.
A geometric region contains 24 residents over 3 km². Classify the correct density value and unit.
- Density=24/3=8.
- The denominator is km², giving residents/km².
Answer: 8 residents/km² — divide 24 by 3 and preserve the denominator dimension.
Quick Check
Classify examples and non-examples for the concept 'Apply area/volume density concepts'.
A geometric region contains 36 residents over 6 km². Classify the correct density value and unit.