# During a lab activity Dash and Bob measured a wooden block to be 3.10cm in length, 0.50cm in width and 2cm in height. What is the volume of this block with the correct number of significant figures?

beateach | Certified Educator

In order to find the volume of the wooden block, Dash and Bob would use the formula:

Length x Width x Height = Volume of a Rectangular Prism (in cubic units)

3.10 cm x 0.50 cm x 2.0 cm = 3.1 cubic centimeters

The volume of the wooden block is 3.1 cubic centimeters

Rules for finding the number of significant figure include:

• The leftmost digit which is not a zero is the most significant number.
• If the number does not have a decimal point, the rightmost digit that is not a zero is the least most significant number.
• If the number does have a decimal point, the rightmost digit is the least significant, even if it is a zero.
• Every digit between the least and most significant digits should be counted as a significant digits.

The number of significant digits in a product (multiplication) or quotient (division) is the same number of significant digits as in the number with the lowest number of significant figures.