Approximate the area of a rectangle sized 12 cm by 18 cm
The area of a rectangle is calculated by multiplying its length by its width, so for a rectangle of size 12 cm by 18 cm, the area would be `12 cm × 18 cm = 216 cm²`.
Complete the following task based on the instruction and optional input provided.### Instruction:
Approximate the area of a rectangle sized 12 cm by 18 cm

### Output:
The area of a rectangle is calculated by multiplying its length by its width, so for a rectangle of size 12 cm by 18 cm, the area would be `12 cm × 18 cm = 216 cm²`.