How Do You Calculate Area and Uncertainty for a Rectangular Plate?

[potermic]

I am not to sure how to calculate this out

A rectangular plate has a length of 23.2 +/- .2 cm and a width of 9.0 +/- .1 cm. calculate the area and its uncertainty

Anyhelp would be greatly apriciated

 

[Shooting Star]

It's best to have a look at http://physicsed.buffalostate.edu/pubs/MeasurementAnalysis/MA1_9ed.pdf" . Both give explicit examples of your type of problem, but use different methods. I think the first one is the simpler.