Respuesta :

Answer:

4

Step-by-step explanation:

2lw + 2hw + 2lh = 2(3)(2.2) + 2(7.5)(2.2) + 2(3)(7.5) = 91.2

Answer:

The surface area is 91.2cm

Step-by-step explanation:

Let S = Surface Area

S= 2 (2.2cm x 7.5cm) + 2 (3.0cm x 7.5cm) + 2 (2.2cm x 3.0cm)

S= 33cm + 45cm + 13.2 cm

S= 91.2 cm