if the length breadth and height of a cuboid are equal and its total surface area is 150cm then it's length
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given l=b=h =x
surface area of cuboid = 2 (lb +bh+ hl)
150 =2 (x^2 + x^2 + x^2 )
150 =2 (3x^2)
150/2 =3x^2
75 =3x^2
75 /3 =x^2
25=x^2
5=x
so it's length = 5
surface area of cuboid = 2 (lb +bh+ hl)
150 =2 (x^2 + x^2 + x^2 )
150 =2 (3x^2)
150/2 =3x^2
75 =3x^2
75 /3 =x^2
25=x^2
5=x
so it's length = 5
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Hey !!
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