Question

The diameter of a pipe of length 20 m is 56 cm. Find the cost of painting the surface of the pipe at
the rate of 85 per m².​

Answer 1

Answer:

Diameter=56cm

Diameter=56cmRadius=56/2=28cm

Diameter=56cmRadius=56/2=28cmCircumference=2πr=2×22/7×28=176cm

Diameter=56cmRadius=56/2=28cmCircumference=2πr=2×22/7×28=176cmLenght of Pipe=20m=2000cm

Diameter=56cmRadius=56/2=28cmCircumference=2πr=2×22/7×28=176cmLenght of Pipe=20m=2000cmArea of Pipe=2000×176=3,52,000

Diameter=56cmRadius=56/2=28cmCircumference=2πr=2×22/7×28=176cmLenght of Pipe=20m=2000cmArea of Pipe=2000×176=3,52,000Cost of Painting=Rs12/per m²

Diameter=56cmRadius=56/2=28cmCircumference=2πr=2×22/7×28=176cmLenght of Pipe=20m=2000cmArea of Pipe=2000×176=3,52,000Cost of Painting=Rs12/per m²=12×3,52,000

Diameter=56cmRadius=56/2=28cmCircumference=2πr=2×22/7×28=176cmLenght of Pipe=20m=2000cmArea of Pipe=2000×176=3,52,000Cost of Painting=Rs12/per m²=12×3,52,000=Rs 42,24,000

Step-by-step explanation:

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Answer 2

Answer: Hope its useful please mark me as the brainliest

Step-by-step explanation: