$\"\"$

From the diagram height of the trapezoid is 9 m and bases are 7 m and 11 m.

Area of a trapezoid is $\"\"$ .

$\"\"$ (Substitute 7 for $\"\"$ ,11 for $\"\"$ and 9 for h)

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

$\"\"$ (Multiply: $\"\"$ )

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

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