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

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 .