$\"\"$

The height of the trapezoid is h, bases are 16 m and 8 m and area is 240 $\"\"$ .

Area of a trapezoid is $\"\"$

$\"\"$ (Substitute 16 for $\"\"$ , 8 for $\"\"$ and 240 for A)

$\"\"$ (Add: $\"\"$ )

$\"\"$ (Divide: $\"\"$ ) $\"\"$

$\"\"$ (Divide each side by 12)

$\"\"$ (Cancel common terms)

$\"\"$ (Divide: $\"\"$ ) $\"\"$

The heigth of the trapezoid is $\"\"$ .