Question

The sum of length ,breadth,depth of a cuboid is 12cm and its diagonal 5square root 2​cm .find its surface area

Answer 1

Step-by-step explanation:

hey mate

let the breadth be x,length be x+1,depth be x+2.

according to question

x+x+1+x+2=12

3x+3=12

3x=12-3

3x=9

x=3

length=3cm

breadth=x+1=3+1=4cm

depth=x+2=3+2=5cm

surface area=2(lb+bh+hl)

=2(3×4+4×5+5×3)

=2(12+20+15)

=2(47)

=94cm^2

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