Question

With due regards for significant figures (12.5)^2​

Answer 1

Answer:156

Explanation:

squaring 12.5 means that multiplying it by itself. When multiplying we must keep in mind that the answer must contain the lowest number of significant figures that are given in the question.

For Example:

8.5*5=42 but the lowest number of significant figures is 1 as the digit 5 contains 1 significant figure so our answer will round off to 40 which has 1 significant figure. Same is the case with 12.5*12.5 the least number of significant figures are 3 so our answer must contain 3 significant figures and instead of 156.25 the answer will round off to 156.