Mathematics, 17.04.2020 00:32, microwave13016

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28.
The set of all points in a plane that are 5 cm from a circle with radius 2 cm.
30.
The set of all points in space that are a distance 6 in. from AB

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I need help. Step by step please.
28.
The set of all points in a plane that are 5 cm fr...