Mathematics, 03.06.2021 17:10 punani

An engineer is planning a new water pipe installation. The circular pipe has a diameter of d=20\text{ cm}d=20 cmd, equals, 20, start text, space, c, m, end text. What is the area AAA of the circular cross section of this pipe?

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An engineer is planning a new water pipe installation. The circular pipe has a diameter of d=20\text...