Question

A room has following dimension length 8 cm, breasth 12 cm, height 9 cm find the surface area of the room​

Answer 1

Answer:

876cm³

Step-by-step explanation:

Formula is

surface area of rectangle = 2(lw+wh+lh)

where W= width L= length H= height

Answer 2

Answer:

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Step-by-step explanation:

Area of the room

l=8cm

b=128cm

h=9cm

2lb+2lh+2hb

2(8×12)+2(8×9)+2(9×12)

2×96+2×72+2×108

192+144+216

=552cm^2