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Questions and Answers
Which term is used to describe a quadrilateral whose vertices all lie on a single circle?
Which term is used to describe a quadrilateral whose vertices all lie on a single circle?
- Irregular quadrilateral
- Concave quadrilateral
- Cyclic quadrilateral (correct)
- Convex quadrilateral
What is the center of the circumcircle called?
What is the center of the circumcircle called?
- Chordal center
- Concyclic center
- Circumradius
- Circumcenter (correct)
Which of the following is NOT a name for a cyclic quadrilateral?
Which of the following is NOT a name for a cyclic quadrilateral?
- Chordal quadrilateral
- Concyclic quadrilateral
- Convex quadrilateral (correct)
- Inscribed quadrilateral
What is the circumradius of a cyclic quadrilateral?
What is the circumradius of a cyclic quadrilateral?
Do all quadrilaterals have a circumcircle?
Do all quadrilaterals have a circumcircle?
Which term is used to describe a quadrilateral whose vertices all lie on a single circle?
Which term is used to describe a quadrilateral whose vertices all lie on a single circle?
What is the center of the circumcircle called?
What is the center of the circumcircle called?
What is the circumradius of a cyclic quadrilateral?
What is the circumradius of a cyclic quadrilateral?
Which of the following is NOT a name for a cyclic quadrilateral?
Which of the following is NOT a name for a cyclic quadrilateral?
Do all quadrilaterals have a circumcircle?
Do all quadrilaterals have a circumcircle?
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Study Notes
Cyclic Quadrilaterals
- A quadrilateral whose vertices all lie on a single circle is called a cyclic quadrilateral.
- The center of the circumcircle is called the circumcenter.
- Tritangle is NOT a name for a cyclic quadrilateral.
- The circumradius of a cyclic quadrilateral is the radius of the circumcircle.
- Not all quadrilaterals have a circumcircle, but a quadrilateral that does is called a cyclic quadrilateral.
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