Question

Rain which falls onto a flat rectangular surface of length 6m and width 4m is collected in a cylinder of internal radius 20 cm. What is the depth of water in the cylinder after a storm in which 1 cm of rain fell?

Answer 1

The answer must be 191 cm which is written in the book

Answer 2

@Faris_Waleed first of all calculate the volume of the rectangle.

Answer 3

*volume of the cuboid...

Answer 4

ok

Answer 5

Use this.. \[V1 = V2\]
\[V1 = abh\]\[V2 =\Pi r^2h \]
Solve for h

Answer 6

h=1.9m*100=190.9cm