Question

Work out the area of this compound shape.Who might use a microphone in their work? What would they use it for?

Answer 1

Answer:

Microphones are used in many applications such as telephones, hearing aids, public address systems for concert halls and public events, motion picture production, live and recorded audio engineering, sound recording, two-way radios, megaphones, radio and television broadcasting

Explanation:

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Answer 2

Answer:

The people working in Radio companies and employees of super market and airport and railway station. They use it to declare something and for entertainment.