$\"\"$

\

The height of the trapezoid is 48 ft, bases are $\"\"$ and 50 ft and area is 1800 $\"\"$ .

\

Area of a trapezoid is $\"\"$

\

$\"\"$ (Substitute 48 for $\"\"$ , 50 for $\"\"$ and 1800 for A)

\

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

\

$\"\"$ (Divide each side by 24)

\

$\"\"$ (Cancel common terms)

\

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

\

$\"\"$ (Subtract 50 from each side)

\

$\"\"$ (Apply additive inverse property: $\"\"$ )

\

$\"\"$ (Apply additive identity property: $\"\"$ )

\

$\"\"$ (Subtract: $\"\"$ ) $\"\"$

\

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