Question

21318cm2 to 3 significant figure​

Answer 1

Answer:

21300

Step-by-step explanation:

to round by 3S.F, you need to count to the third digit and round from there. since the third digit is a 3, this is also seen as 300. to round hundreds, the number has to be ≥ 50. as 18 is below 50, you round down to 300, so your answer is 21300.