Question

Find cost of polishing a circular table on of radius 2.8 m if the rate of polishing is rupees 20 m²​

Answer 1

Answer:

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ANSWER BY DRAMA QUEEN

Answer 2

Answer:

✮requried answer:

$= > radius \: of \: circular \: table = 2.8 \\ \\ = > rate \: of \: polishing \: {m}^{2} = rupees \: 20 \\ \\ = > area \: of \: circular \: table \: = \pi {r}^{2} \\ \\ = \frac{22}{7} \times 0.4 \times 2.8 \: \\ \\ = 24.64 {m}^{2} \\ \\ \\ = > \: cost \: of \: polishing \: 24.64 {m}^{2} = 24.64 \: \times 20 \\ \\ = rupees \: 492.8$