alleryA tangent of 6 cm and a secant meet at an outside point. The secant's outer part is 4 cm. What is the whole secant?
A9 cm
B10 cm
C8 cm
D12 cm
Answer & Solution
Correct answer: A. 9 cm
Tangent squared equals outer part times whole secant, so 36 = 4 x whole, giving 9 cm.
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