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Mathematics 11 Online
OpenStudy (anonymous):

AB and BC are tangent to circle D. Find x if AB = 2x + 9 and BC = 3x + 6. Find x.

OpenStudy (anonymous):

|dw:1402531212456:dw|

OpenStudy (anonymous):

Tanget lines from a point to a circle are always equal. Hence, AB=BC, aka 2x+9=3x+6. Then you can just solve for x.

OpenStudy (anonymous):

3?

OpenStudy (anonymous):

Yup. This is an important concept btw. Try to remember it.

OpenStudy (anonymous):

thank you!

OpenStudy (anonymous):

np

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