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pls help

Answer:
a. 16 sq cm
b.20 sq cm
Step-by-step explanation:
Area of a parallelogram:
A = b•h
A = 4•4 = 16 sq cm
Area of a trapezoid:
A = 1/2(b+b)•h
A = 1/2(6+4)•4
A = 1/2(10)•4
A = 20 sq cm