How many significant figures are present in the measurement 52?

• A. 2
• B. 0
• C. 1
• D. 3

Answer: (A)

Verified step by step guidance

1. Understand that significant figures (sig figs) are the digits in a number that carry meaningful information about its precision.
2. Look at the given measurement, which is 52. Since it is a whole number without a decimal point, each nonzero digit is considered significant.
3. Identify the digits in 52: the '5' and the '2' are both nonzero digits, so both are significant.
4. Count the number of significant digits: there are 2 digits (5 and 2), so the measurement has 2 significant figures.
5. Conclude that the correct number of significant figures in the measurement 52 is 2.