Question

the dimensions of a cuboid are in the ratio 6:4:3band it's volume is 9000cm cube. Find surface area

Answer 1

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Answer 2

Answer:

Step-by-step explanation

length=6x , breadth=4x, height=3x

volume=l*b*h

9000=6x*4x*3x

x³=125

x=5

length=6x=6*5=30 cm ; breadth=4x=4*5=20 cm ; height= 3x=3*15= 15 cm

SURFACE AREA= 2(lh+bh+lb)

                            =2(30*15+20*15+30*20)

                           =2*(450+300+600)

                           =2*1350

                           =2700 cm³