Question

The total surface area of a cuboid having squared base of 144 m2 of area, is 432 m², find its height.​

Answer 1

Answer:

here

Step-by-step explanation:

here

base area of squared based =144

=l²=144

l=12cm

i.e. l=b=12cm

now total surface area of cuboid =432

2(lb+bh+hl)=432

lb+bh+hl=432/2

12×12+12h+12h=216

24h=216-144

h=72/24

h=3

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