When we make measurements in science, we are concerned with accuracy and precision. To maintain preciseness we use significant digits in measurement and calculations. How many significant digits are in the measurement – 36.09 meters?

Answer 1

The measurement 36.09 meters has four significant digits.

The significant digits are:

• 3
• 6
• 0
• 9

All non-zero digits are significant, and zeros that are between non-zero digits (like the 0 in 36.09) are also significant. Therefore, the number of significant digits in 36.09 meters is four.