Maths-
General
Easy

Question

Given LSA of a cuboid is 900cm2 and the breadth x length are 10cm x 20cm.Calculate height of cuboid.

  1. 15
  2. 12
  3. 10
  4. 20

hintHint:

 Lateral Surface Area (LSA) of cuboid = 2h( l + b)
where
l → length of the cuboid
b → breadth of the cuboid
h → height of the cuboid

The correct answer is: 15


    • We have given,
    LSA of cuboid = 900cm2
    Breadth= 10 cm
    Length = 20 cm
    • We know that ,
    LSA of cuboid = 2h( l + b)
    • Insert the values in the above equation.

    900 = 2h (20 + 10)

    900 = 2h(30)
    Divide both sides of equation by 30, we get

    table attributes columnspacing 1em end attributes row cell 900 over 30 equals 2 h end cell row cell 30 equals 2 h end cell end table
    Divide both sides of equation by 2, we get

    h = 15

    • Therefore the height of given cuboid is 15 cm.
    • The correct option is option a) 15 .

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