please help me with this question. cant figure this ​

Answer:

Answer:

Given radius of the hemisphere = 21 cm

Need to find Volume = ?

Step-by-step explanation:

As we all know the Volume of the Hemisphere

= Half of the Volume of Sphere

= 1/2 * (4/3 πr³)

= 2/3 π r³

= (2/3 * 22/7 * 21*21*21)

= 2*22*21*21*21

3*7

Ans is 2*22*21*21 cm³

Ans is 19404 cm³

The following are the advantages of networks:

•It is easy to back up all the data as it is stored on the file server.

•Communication becomes easy with the help of an email and instant messenger.

•Sharing of the files is easy.

Answer:

Advantages of Network:

These are the main advantages of Computer Networks:

Central Storage of Data –

Files can be stored on a central node (the file server) that can be shared and made available to each and every user in an organization.

Anyone can connect to a computer network –

There is a negligible range of abilities required to connect to a modern computer network. The effortlessness of joining makes it workable for even youthful kids to start exploiting the data.

Faster Problem-solving –

Since an extensive procedure is disintegrated into a few littler procedures and each is taken care of by all the associated gadgets, an explicit issue can be settled in lesser time.

Reliability –

Reliability implies backing up information. Due to some reason equipment crashes, and so on, the information gets undermined or inaccessible on one PC, another duplicate of similar information is accessible on another workstation for future use, which prompts smooth working and further handling without interruption.

It is highly flexible –

This innovation is known to be truly adaptable, as it offers clients the chance to investigate everything about fundamental things, for example, programming without influencing their usefulness.

Security through Authorization –

Security and protection of information are additionally settled through the system. As just the system clients are approved to get to specific records or applications, no other individual can crack the protection or security of information.

It boosts storage capacity –

Since you will share data, records, and assets with other individuals, you need to guarantee all information and substance are legitimately put away in the framework. With this systems administration innovation, you can do the majority of this with no issue, while having all the space you require for capacity.

Answer:

Explanation: ok