Answer:
Area of trapezoid is:
162 cm²
Explanation:
Area(A) of trapezoid is given by:

Here, we are given Height=9 cm
One parallel side=6 cm
Other parallel side=(12+6+12) cm
= 30 cm
Sum of parallel side=(6+30) cm
= 36 cm
Area=

= 162 cm²
Hence, Area of trapezoid is:
162 cm²