A rectangle has a length of 9.00 inches and a width of 4.25 inches. What is the area in square inches? Round to the correct significant digits.

Question

anonymous · Answer

@radar  can you help me?!

radar · Answer

It appears to me the linear dimensions are both 3 significant figures.  The area is the product of those two dimensions A = 4.25 times 9.00 =38.25 Rounded to 3 significant figures would be 38.3.  Now here's the sad part, I am not to familiar with this procedure, so please ask another for a second opinion.

anonymous · Answer

Multiply 9.00 by 4.25. Then you will get the area.

anonymous · Answer

Thanks @radar !!!!!  You too @OrangeMaster

radar · Answer

@mathmale please verify what I've done here.

radar · Answer

@OrangeMaster whatis the correct number of significant figures in the area.

anonymous · Answer

I don't know. I know as much as you do on this problem.

mathmale · Answer

At first glance, your (Radar's) argument appears to be just fine.

radar · Answer

Well it has been a loooooong time for me in this area.  Thanks all for your input.

anonymous · Answer

Thanks @mathmale  and You @radar  again!!! Thanks bunches!!!!