Dimensions 2720

The cabinet has the shape of a cuboid, the dimensions of which are 80 cm and 55 cm, and a height of 1.8 m. The cabinet is painted twice on the outside. How much paint is used to paint the cabinet if 1kg is enough for 4 m2? (we do not paint the bottom of the cabinet)

Correct answer:

m =  2.65 kg

Step-by-step explanation:

a=80 cm m=80:100  m=0.8 m b=55 cm m=55:100  m=0.55 m c=1.8 m  S=a b+2 (a+b) c=0.8 0.55+2 (0.8+0.55) 1.8=1053=5.3 m2 S1=4 m2/kg  m=2 S/S1=2 5.3/4=2.65 kg



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