Posted by Anonymous on .
You calculate the area of a 150m x 100.0 m room. How many significant figures should your answer include?
a. 1
b. 2
c. 3
d. 4
2?

Science Significant Figures 
DrBob222,
No. Area = 150 m x 100.0 m = ?
When multiplying(or dividing) the number of s.f. in the answer is the same as the SMALLEST number of the group. 150 has 3, 100.09 has 4; therefore, the answer may have 3.
Here is a very good site to read for this.
http://www.chemteam.info/SigFigs/SigFigs.html 
Science Significant Figures 
Anonymous,
Doesn't 150 have 2?

Science Significant Figures 
Ravneet Gill,
Yes the answer is two, because you round it to the least number of sig figs and 150 has 2, and 100.0 has 4. So we would round the complete answer to 2 Sig Figs.

Science Significant Figures 
DrBob222,
Well, I counted 150 as 3 but it has 3 ONLY if written as 150. or 1.50E3. Sorry about that; you're right. 2 is the right answer and I'm wrong. :(

Science Significant Figures 
me,
Are you in Connections Academy?

Science Significant Figures 
boo,
thanks guys!!!