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OpenSessame
 one year 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.)
OpenSessame
 one year 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.)

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Directrix
 one year ago
Best ResponseYou've already chosen the best response.1The theorem you need to solve this problem is attached below.

OpenSessame
 one year ago
Best ResponseYou've already chosen the best response.0I see that but i really dont get how to do it.

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

Directrix
 one year ago
Best ResponseYou've already chosen the best response.1On the equation you wrote, you forgot to square the tangent length.

Directrix
 one year ago
Best ResponseYou've already chosen the best response.156.231 for x = AB which is the diameter is what I got. Same as your answer.

Directrix
 one year ago
Best ResponseYou've already chosen the best response.1Round to the nearest tenth.

OpenSessame
 one year ago
Best ResponseYou've already chosen the best response.0Okay thanks! Can you help me out with some other ones too please?

Directrix
 one year ago
Best ResponseYou've already chosen the best response.1What is 56.231 to the nearest tenth?

Directrix
 one year ago
Best ResponseYou've already chosen the best response.1Close this thread and post your next question in a new thread.

OpenSessame
 one year ago
Best ResponseYou've already chosen the best response.0Circle 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

Directrix
 one year ago
Best ResponseYou've already chosen the best response.1I 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.
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