Question

a metal cuboid of dimension 30cm×22cm×5 cm was melted and cast in to a cylinder of height 20 m. what is its radius?
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Answer 1

Answer:

in the photo

Step-by-step explanation:

.........everything given in the pic

Answer 2

22 / 7 × r^2 × 14 = 22 × 15 × 7.5

22 × r^2 × 2 = 22 × 1Answer

 

1 ) Dimensions of the metal cuboid ,

Length = l = 30 cm

Breadth = b = 22 cm

Height = h = 5 cm

2 ) Height of the cylinder ( H ) = 200cm

Let radius of the cylunder base = r cm

According to the problem given ,

Metal Cuboid melted and cast into a cylinder.

Therefore,

Volume of the cylinder = volume of the metal cuboid

Pi × r^2 × H = lbh

Step-by-step explanation:

Now put the values in the given formula and you will get your answer.

I hope that it will help you.