Question

B. How many square meters does an 80. ft2 rug occupy? (1 ft = 12 in.)

Answer 1

b.

First squared the following conversion factor: 1 ft = 12 in, as follow:

`\begin{gathered} 1ft=12in \\ (1ft)^2=(12in)^2 \\ 1ft=144in^2 \end{gathered}`

Then, use the previous result as a conversion factor to convert 80.0ft^2, as follow:

`80.0ft^2\cdot(144in^2)/(1ft^2)=11520in^2`

Now, consider that 1 m = 39.3701 in, then, if you squared you obtain:

`\begin{gathered} 1m=39.3701in \\ (1m)^2=(39.37in)^2 \\ 1m^2=1550.004774in^2 \end{gathered}`

use the previous result as a conversion factor:

`11520in^2\cdot(1m^2)/(1550.004774in^2)\approx7.43m^2`

Hence, 80.0ft^2 is approximately 7.43 m^2