Question

ashish is digging a pit of radius 2.8m and 3m depth.He is using mud dug out from the pit to fill a vacant area of land of dimensions 8m×2m.Find the raised height of the vacant area

Answer 1

Answer:

give ,

radius = 2.8 m

depth ( height ) = 3 m

pit is a cylinder shape

volume of cylinder =   pi r squre h

so , 22/7 * 2.8 *3

= 73.92 m cube  

there fore

area of land to fill  = volume of the pit

8 * 2 hight = 73.92

16 hight  = 73.92

hight = 73.92 /16

hight = 4.62 m