Chapter 7 - Similarity - 7-5 Proportions in Triangles - Practice and Problem-Solving Exercises - Page 478: 62

$AC$ = $9$ $m^2$ $CB$ = $16$ $m^2$ $BA$ = $25$ $m^2$

First side: $AC$ = $($3$ m)^2$ Square both the value and the unit: $AC$ = $9$ $m^2$ Second side: $CB$ = $($4$ m)^2$ Square both the value and the unit: $CB$ = $16$ $m^2$ Third side: $BA$ = $($5$ m)^2$ Square both the value and the unit: $BA$ = $25$ $m^2$