Respuesta :

Area of Parallelogram = base x height
height = 4.5 cm
base = 4.5 cm x 2

height = 4.5 cm
base = 9 cm

9 cm x 4.5 cm = 40.50 cm^2
the height is 4.5 
4.5 times 2 is 9

you have to multiply 9 by 4.5= 40.5