Rain water which falls on a flat surface of length 6m and breadth 4m is transferred into a cylindrical vessel of internal radius 20cm . What will be the height of water in the cylindrical vessel if the rain fall is 2cm ? Give your answer to the nearest whole number. (Use pie=3.14)

1

Answers

2015-02-27T23:47:58+05:30

This Is a Certified Answer

×
Certified answers contain reliable, trustworthy information vouched for by a hand-picked team of experts. Brainly has millions of high quality answers, all of them carefully moderated by our most trusted community members, but certified answers are the finest of the finest.
Dimension of flat surface = 6m×4m or 600cm×400cm
height of rainfall = 2cm
volume of water = 600×400×2 cm³

radius of cylinder = 20cm
let height of water = h
volume = πr²h 

 \pi r^2h=600 \times 400 \times 2\\ \\ \Rightarrow 3.14 \times 20^2 \times h=600 \times 400 \times 2\\ \\ \Rightarrow h= \frac{600 \times 400 \times 2}{3.14 \times 20^2} \\ \\ \Rightarrow h=382.16\ cm\\ \\ \Rightarrow h =\boxed{382\ cm}

Height of water is 382cm (to the nearest whole number.)
0