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CD is tangent to circle O at D. Find the diameter of the circle for BC = 13 and DC = 30. Round to the nearest tenth. (The diagram is not drawn to scale.)
 8 months ago
 8 months ago
CD is tangent to circle O at D. Find the diameter of the circle for BC = 13 and DC = 30. Round to the nearest tenth. (The diagram is not drawn to scale.)
 8 months ago
 8 months ago

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DirectrixBest ResponseYou've already chosen the best response.1
The theorem you need to solve this problem is attached below.
 8 months ago

OpenSessameBest ResponseYou've already chosen the best response.0
I see that but i really dont get how to do it.
 8 months ago

DirectrixBest ResponseYou've already chosen the best response.1
See if you can solve the equation. 30² = 13( 13 + x) where x = AB, the diameter of the circle.
 8 months ago

DirectrixBest ResponseYou've already chosen the best response.1
On the equation you wrote, you forgot to square the tangent length.
 8 months ago

DirectrixBest ResponseYou've already chosen the best response.1
56.231 for x = AB which is the diameter is what I got. Same as your answer.
 8 months ago

DirectrixBest ResponseYou've already chosen the best response.1
Round to the nearest tenth.
 8 months ago

OpenSessameBest ResponseYou've already chosen the best response.0
Okay thanks! Can you help me out with some other ones too please?
 8 months ago

DirectrixBest ResponseYou've already chosen the best response.1
What is 56.231 to the nearest tenth?
 8 months ago

DirectrixBest ResponseYou've already chosen the best response.1
Close this thread and post your next question in a new thread.
 8 months ago

OpenSessameBest ResponseYou've already chosen the best response.0
Circle O and circle P are congruent. What can you conclude from the diagram? https://study.ashworthcollege.edu/access/content/group/45b8c516100846d7aa1dbb9b62c786ff/geometry_exam_12_files/mc0011.jpg
 8 months ago

DirectrixBest ResponseYou've already chosen the best response.1
I think you need the theorem that begins: In the same circle or in congruent circles, congruent central angles have ________________________________? That would be, I think, what you could conclude. But, first look up that theorem.
 8 months ago
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