Solving Significant Figures Problems - Area of a Parking Lot

[chocolatelover]

Hi everyone,

Can someone please help me with this problem?

The problem says:

A parking lot is 115 ft by 200 ft. Find the area in m2

My attempt:

1m=3.281 ft

So (115 ft)(1m/3.281ft)=35.1m

(200ft)(1m/3.281ft)=70.0m

A=(35.1m)(70.0m)
A=2457m2=2.46X10^3m^2

Thank you very much

 

[awvvu]

200/3.281 = 61.0, not 70.

Also watch out for round-off errors.

 

[chocolatelover]

Thank you very much

Does 2.14 X 10^3 m^2 look right?

 

[awvvu]

Yup:

http://www.google.com/search?q=(115+feet+*+200+feet)+in+meters^2

 

[chocolatelover]

Thank you very much

Regards