Mathematics, 05.05.2020 23:19, stef76

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?
Give your answer in terms of pi.

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