how many significant figures are in this length? 21.00 cm

how many significant figures are in this length? 21.00 cm

how many significant figures are in this length? 21.00 cm

Answer

Answer:

4

Explanation:

Step1: Identify non - zero digits

2 and 1 are non - zero digits, count as 2 significant figures.

Step2: Consider trailing zeros after decimal

The two zeros after the decimal point are significant. So in total, there are 4 significant figures.