Question

A rocket is the shape of cylinder with a cone attached to one end and hemisphere attached
to other end. All of them have same radius of 1.5m. The total length of the rocket is 7m and
height of the cone is 2m. Find the volume of the rocket.​

Answer 1

Answer:

heyaa mate ❤

Step-by-step explanation:

ANSWER

Given :

Radius r=1.5 m, Total length =7 m

Height of the cone (h

1

)=2 m

Height of hemisphere = Radius of hemisphere =1.5 m

Height of cylinder (h

2

)= Total length −h

1

−r=7−2−1.5=3.5 m

Now, volume of the rocket = Volume of the cylinder + volume of a cone + volume of a hemisphere ........ (i)

We know that, Volume of the cylinder =πr

2

h

2

=π(1.5)

2

×3.5

=7.875π m

3

Volume of a cone =πr

2

3

h

1

=π(1.5)

2

×

3

2

=1.5π m

3

Volume of a hemisphere =

3

2

πr

3

=

3

2

π×(1.5)

3

=2.25π m

3

From (i)

Volume of the rocket =7.875π+1.5π+2.25π

=11.625π m

3

=36.521 m

3

I hope its help u ✌❤☺