Answer
Using dimensional analysis gives:
a.$ 1 km^{2} = 10^{6} m^{2} $
$195 / 10^{6} m^{2} = 1.95 \times 10^{-4} km^{2} $
b. $1 dm^{2} = 100 m^{2} $
$195 \times 100 = 1.95 \times 10^{4} dm^{2} $
c. $1 m^{2} = 10^{4} cm^{2} $
$ 195 \times 10^{4} cm^{2} = 1.95 \times 10^{6} cm^{2}$
Work Step by Step
Using dimensional analysis gives:
a.$ 1 km^{2} = 10^{6} m^{2} $
$195 / 10^{6} m^{2} = 1.95 \times 10^{-4} km^{2} $
b. $1 dm^{2} = 100 m^{2} $
$195 \times 100 = 1.95 \times 10^{4} dm^{2} $
c. $1 m^{2} = 10^{4} cm^{2} $
$ 195 \times 10^{4} cm^{2} = 1.95 \times 10^{6} cm^{2}$
