Question

A whole surface area of a cuboidal sheet is 8788 sq cm.If the length ,breadth and height are in the ratio if 4:3:2,then find the length

Answer 1

Answer:

surface area=8788

surface area=2(lb+bh+hl)

l:b:h=4:3:2

l=4x b=3x h=2x

8788=2(4x*3x+3x*2x+2x*4x)

4394=26x^2

x^2=4394/26

x^2=169

x=13cm

L= 4x=13*4=52cm

B=3x=13*3=39cm

H=2x=13*2=26cm