### Mensuration

goals
What unit would you use to measure water?
A circus tent is cylindrical upto a height of  $3m$ and conical above if. If the diameter of the base is $105m$ and the slant height of the conical part is $53m$, find the total canvas used in making the tent.
The above figure is made up of a square, a triangle and a rectangle. Find the area of the shaded region.
Here is an empty pool in the shape of a cuboid.
The width of the pool is $3\ m$
The length of the pool is $12\ m$
The top of the pool is $2.5\ m$ above the base of the pool.
jeb is goining to put water in the pool.
The level of the surface of the water will be $60\ cm$ below the top of the pool.
Water flows into the pool at $400\ litres$ per minute
$1\ m^{3}=1000 liters$
How long will it take to fill to pool to $60\ cm$ below the top of the pool?
Given answer in hours and miuntes.
If $r=6\ m, \ell =8\ cm$, find the  total surface area.