Complete the proof of the Converse of the Tangent-Radlus Theorem. Glven: Line m Is In the plane of circle C, P Is a polnt of circle C, and CP Im Prove: m Is tangent to circle C at P. Let Q be any point on m other than P. Then ACPQ is a right triangle with hypotenuse Therefore, CQ ? v CP since the hypotenuse is the ? v side of a right triangle. Since CP is a radius, point Q must be in the ? v of circle C. So, P is the only point of line m on circle C. Since line m intersects circle C at exactly one point, line m is tangent to the circle at P.

Elementary Geometry For College Students, 7e
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ISBN:9781337614085
Author:Alexander, Daniel C.; Koeberlein, Geralyn M.
Publisher:Alexander, Daniel C.; Koeberlein, Geralyn M.
ChapterP: Preliminary Concepts
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Complete the proof of the Converse of the Tangent-Radlus Theorem.
Glven: Line m Is In the plane of circle C, P Is a polnt of clrcle C, and CP 1m
Prove: m Is tangent to circle C at P.
Let Q be any point on m other than P. Then ACPQ is a right triangle with hypotenuse
v CP since the hypotenuse is the ?
Therefore, CQ
v side of a right triangle.
Since CP is a radius, point Q must be in the ?
v of circle C.
So, P is the only point of line m on circle C. Since line m intersects circle C at exactly one point, line m is
tangent to the circle at P.
Type here to search
Transcribed Image Text:Complete the proof of the Converse of the Tangent-Radlus Theorem. Glven: Line m Is In the plane of circle C, P Is a polnt of clrcle C, and CP 1m Prove: m Is tangent to circle C at P. Let Q be any point on m other than P. Then ACPQ is a right triangle with hypotenuse v CP since the hypotenuse is the ? Therefore, CQ v side of a right triangle. Since CP is a radius, point Q must be in the ? v of circle C. So, P is the only point of line m on circle C. Since line m intersects circle C at exactly one point, line m is tangent to the circle at P. Type here to search
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