Question

Find the surface area of a geometric box , whose length, breadth and height are 18cm, 8cm and 1.8cm​

Answer 1

Answer:

formula=2(lb+bh+lh)

Step-by-step explanation:

l=18cm  b=8cm  h=1.8cm

surface area of cuboid=2 (18x8+1.8x8+18x1.8)

                                     =2(61.2)

                                     =122.4 sq. cm                                                                            

Answer 2

Answer:

surface area of a geometric box = 381.6cm

Step-by-step explanation:

surface area of cuboid = 2(length x breadth + breadth x height + height x length)

so,

length = 18cm

breadth = 8cm

height = 1.8cm

according to formula:

=> 2(18 x 8 + 8 x 1.8 + 1.8 x 18)cm

=> 2(144 + 14.4 + 32.4)cm

=> 2(190.8)cm

=> 381.6cm