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Answer 1

Answer:

16

Step-by-step explanation:

First we will calculate the volume of hemisphere.

Volume of hemisphere = 2/3 × πr³

Volume = 2/3 ×  12 × 12 × 12 × π

=> Volume = 1152π cm³

Now, volume of cylinder = πr²h

Given radius = 3 and height = 8

= π × 3 × 3 × 8

= 72π cm³

So, number of bottles required = 1152π/72π

= 16

Answer 2

Answer:

Step-by-step explanation:

Radius of hemispherical vessel is 12 cm

Radius of cylindrical bottle is 3 cm ( consider)

Height of same cylinder is 8 cm

Now , we are going to find it's volume because volume of water remain same if we put it in another vessel or bottel ( of other shapes )

Volume of hemisphere = $\frac{2}{3}\pi r^{3}$

V of vessel = $\frac{2}{3} \pi (12)^{3}$

= $2 \times 12 \times 12 \times 4 \pi$

= 1152 π cm³

Volume of cylinder = π r² h

V of bottle = π (3×3 ) 8

= 72 π cm³

Number of cylindrical bottle = $\dfrac{ V \: of \: vessel }{V of bottle}$

=$\dfrac{1152\pi}{72\pi}$

= 16 cylindrical bottle

Answer

16 cylindrical bottle of same volume are used to fill the liquid.