Question

The length and breadth of a cuboid are 15 cm and 10 cm respectively. If the total surface area is 900cm2, find its height.

Answer 1

Step-by-step explanation:

let height be = h

length of the cuboid = 15cm

breadth of the cuboid= 10 cm

height of the cuboid = h

total surface area of cuboid = 900 cm^2

900 cm^2 = 2(15*10 + 10*h + 15*h)

900 cm^2 = 300 + 20h + 30h

900 cm^2 = 300 + 50h

900 - 300 = 50h

600 = 50h

600/50=h

12 = h

so, height is equal to 12 cm