Area for width

$val7 $val12 . $(val8[1]) $val11 , $(val8[2]).

Perimeter for length

$val7 $val12 . $(val8[1]) $val10 , $(val8[2]).

Area for length

$val7 $val12 . $(val8[1]) $val10 , $(val8[2]).

Area for perimeter

$val7 $val14 . $(val8[1]) $val12 , $(val8[2])

Area and difference *

$val7 $val13 . $(val8[1]) $val15 $(val8[2]), $(val8[3]) $val19.

Area and difference II *

$val7 $val13 . $(val8[1]) $val15 $(val8[2]), $(val8[3]).

Area and proportion *

$val7 $val14 . $(val8[1]) $val12 $(val8[2]), $(val8[3]) $val20.

Area and proportion II *

$val7 $val18 . $(val8[1]) $val16 $(val8[2]), $(val8[3])

Perimeter and difference

$val7 $val16 . $(val8[1]) $val17 $(val8[2]), $(val8[3]) $val22.

Perimeter for width

$val7 $val12 . $(val8[1]) $val11 , $(val8[2]).

Length - width *

$val7 $val14 . $(val8[1]) $val15 , $(val8[2]) $val19.
$val9