Answer
$AC$ = $16$ $m^2$
$CB$ = $16$ $m^2$
$BA$ = $32$ $m^2$
Work Step by Step
All we are asked to do is square each of the sides. Remember to square the units as well:
First side:
$AC$ = $($4$ m)^2$
Square both the value and the unit:
$AC$ = $16$ $m^2$
Second side:
$CB$ = $($4$ m)^2$
Square both the value and the unit:
$CB$ = $16$ $m^2$
Third side:
$BA$ = $($4$\sqrt 2$$ m)^2$
Square both the value and the unit:
$BA$ = $16\sqrt {(2)(2)}$ $m^2$
Multiply what is inside brackets first:
$BA$ = $16\sqrt {4}$ $m^2$
Take the square root of $4$:
$BA$ = $16(2)$ $m^2$
Multiply to solve:
$BA$ = $32$ $m^2$
