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OpenStudy (anonymous):
Below, PB is tangent to both circles. Angles BO’P and COP are congruent, and PO = 20, OO’ = 40, and OC = 12. What is the length of O'B?
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OpenStudy (anonymous):
OpenStudy (anonymous):
@RadEn
OpenStudy (anonymous):
a. 6 b. 12 c. 36
OpenStudy (raden):
let the length of O'B is x , look at the diagram bellow : because the triangle of BO'P similar with the triangle of COP, therefore |dw:1369416250252:dw|
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