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OpenStudy (ashleyisakitty):
AB Is tangent to O. If AO=17 and BC=128, what is AB?
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OpenStudy (ashleyisakitty):
OpenStudy (ashleyisakitty):
Do we use pythag?
OpenStudy (raffle_snaffle):
law of sins
OpenStudy (raden):
yeah, just use pythagorean theorem look that OB = OC + BC = 17 + 128 = 145 (note : OC = AO = radius)
OpenStudy (raden):
therefore. AB^2 = OB^2 - AO^2 solve for AB
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