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Mathematics 7 Online
OpenStudy (anonymous):

Prove that tangents drawn from a point outside the circle are equal in length.

OpenStudy (owlcoffee):

|dw:1379194102067:dw|

OpenStudy (owlcoffee):

|dw:1379195388476:dw|

OpenStudy (anonymous):

yes

OpenStudy (owlcoffee):

Okay, Let's begin by stating our hypothesis, the things we know are true. and the Thesis, wich is the thing we want to conclude. H) AB and AC Tangents T) AB=AC

OpenStudy (anonymous):

yes!

OpenStudy (owlcoffee):

okay, let's begin the proof: if we draw radials segments on OB and OC qe get a perpendicular Segment. <ACO = <ABO theorem. BO=CO because they're radiuses OA is common side. => ABO=ACO =AB=AC

OpenStudy (anonymous):

I appreciate ur efforts thank you!

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