**Problem : **
In the following figure, decide whether a polygon is inscribed in a circle, circumscribed about a circle, or
neither of these.

**Problem : **
In the following figure, decide whether a polygon is inscribed in a circle,
circumscribed about a circle, or neither of these.

**Problem : **
In the following figure, decide whether a polygon is inscribed in a circle,
circumscribed
about a circle, or neither of these.

**Problem : **
In the following figure, decide whether a polygon is inscribed in a circle,
circumscribed
about a circle, or neither of these.

**Problem : **
In the following figure, decide whether a polygon is inscribed in a circle,
circumscribed
about a circle, or neither of these.

**Problem : **
What is the relationship between concentric circles with the same
radius?

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