Question

The sides of a triangle measure 2.22 inches, 3.54 inches, and 4.50 inches. What is the perimeter of this triangle? Report the answer with the appropriate number of significant digits. 10.26 inches 10.30 inches 10.3 inches 10 inches

Answer 1

2.22+3.54 +4.50 =10.26

3 significant digits

10.3 inches

Answer 2

sig figs are the number of numbers recorded

2.22 has 3 sig figs

3.54 has 3 sig figs

4.50 has 3 sig figs

perimiter=distance around=2.22+3.54+4.50=10.26 which has 4 sig figs

round last digit to get 10.3

answer is 10.3 inches