Circle A has radius 5, and Circle B has radius 2. If CD = 12 and is a common
1 answer:
Answer:

Step-by-step explanation:
In the attached diagram
CA=CO+OA
CO=DB
Therefore:
5=2+OA
OA=3 Units
The angle between a tangent line and a radius is 90 degrees. therefore triangle OAB is a right triangle with:
OB=12 units
OA=3 units
Using Pythagoras theorem

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Answer:
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Step-by-step explanation:
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Hope I helped you! The graph calculator is desmos. You can use it for these types of questions.
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- eli <3