Inscribed & Circumscribed Polygons. Lesson 10.7. Inscribed. A polygon is inscribed in a circle if all of its vertices lie on the circle. Circumscribed. A polygon is circumscribes about a circle if each of its sides is tangent to the circle. Circumcenter.
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Inscribed & Circumscribed Polygons
A polygon is inscribed in a circle if all of its vertices lie on the circle.
A polygon is circumscribes about a circle if each of its sides is tangent to the circle.
P is the circumcenter of rectangle COME
O is the incenter of hexagon SPRING!
Once there was a plain old parallelogram named Rex Tangle. Rex was always trying to fit in – into a circle, that is. One day when he awoke, he found that he had straightened out and was finally able to inscribe himself. What had the plain old parallelogram turned into?
Theorem 94: If a parallelogram is inscribed in a circle, it must be a rectangle.
If ABCD is an inscribed parallelogram, then…
ABCD is inscribed in circle O.
B supp. ADC
ADC supp. ADE
If a quadrilateral is inscribed in a circle, its opposite s are supp.
Two s forming a straight are supp.
Two s supp. to the same are .