SIGNIFICANT FIGURES!?

Question

Carry out the following operations as if they were calculations of experimental results, and express each answer in the correct units with the correct number of significant figures.

4.63 cm X 3.6653 cm

Answer 1

4.63 cm x 3.6653 cm =    17.0 cm^2

use least nr. of sig. figures

Answer 2

I love sig figs.

4.63 has 3 sig figs

3.6653 has 5 sig figs.

So the answer must have 3 because it is the fewest in the equation

4.63 * 3.6652 = 16.970339

We must round this to 3 sig figs. Rounded, this would be 17.0

Not 16.9, not 17

But 17.0

Answer:

17.0 cm^2