. 0Q and OR are congruent circles that intersect at C and D. CD is called the common chord of the circles. a. What kind of quadrilateral is QDRC? Why? b. CD must be the perpendicular bisector of QR. Why? с. If QC D = 17 and QR 30, find CD.

. 0Q and OR are congruent circles that intersect at C and D. CD is called the common chord of the circles. a. What kind of quadrilateral is QDRC? Why? b. CD must be the perpendicular bisector of QR. Why? с. If QC D = 17 and QR 30, find CD.

Elementary Geometry for College Students

6th Edition

ISBN:9781285195698

Author:Daniel C. Alexander, Geralyn M. Koeberlein

Publisher:Daniel C. Alexander, Geralyn M. Koeberlein

Chapter7: Locus And Concurrence

Section7.CT: Test

Problem 7CT: For a given triangle such as ABC, what word describes the point of concurrency for athe three...

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Question

. 0Q and OR are congruent circles that intersect at C
and D. CD is called the common chord of the circles.
a. What kind of quadrilateral is QDRC? Why?
b. CD must be the perpendicular bisector of QR. Why?
с. If QC
D
= 17 and QR
30, find CD.

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