Question

Find the surface area of a cuboidal whose :length=7dm,breadth=5dm,height=25cm​

Answer 1

Answer:

Step-by-step explanation:

surface area of cuboid=2(lb+bh+hl)

                                      =2(7*5+5*25+25*7)

                                       =2(35+125+175)

                                       =2×335

                                       =670cm²

Answer 2

Answer:

Dimensions of the cuboid,

Length = 7dm

Breadth= 5dm

Height = 25 cm = 2.5 dm

Surface area of cuboid = 2(lb + hl + hb)

= 2( 35 + 17.5 + 12.5)

= 2 × 65

= 130 sq.cm

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