Question

0.036549 round to three sig figs

Answer 1

3 first sig fig
6 second sig fig
5 third sig fig
4 not more than 5, so do not change 5 to 6

0.0365

Answer 2

0.0365

Step-by-step explanation:

Given number,

0.036549,

In the above number there are 5 significant figures (i.e. 3, 6, 5, 4 and 9)

When we round a decimal number to 3 significant figure we check the fourth significant number after decimal,

if it is 5 or more than 5 then the number is rounded next significant figure it rounded to previous significant figure,

Here, the fourth significant number after decimal = 4

Thus, 0.036549 ≈ 0.0365 ( rounded to 3 significant figure )