Mathematics, 06.06.2020 02:02, toxsicity

4. Ab is tangent to circle O at B. The diagram is not drawn to scale. If AB = 5 and AO = 8. What is the length of the radius (r)?

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4. Ab is tangent to circle O at B. The diagram is not drawn to scale. If AB = 5 and AO = 8. What is...