A community for students. Sign up today!
Here's the question you clicked on:
 0 viewing
 2 years ago
Given: DR tangent to Circle O.
If (measure of)DB = 150°, then (angle)A = ?degrees.
 2 years ago
Given: DR tangent to Circle O. If (measure of)DB = 150°, then (angle)A = ?degrees.

This Question is Closed

CliffSedge
 2 years ago
Best ResponseYou've already chosen the best response.1More of these shenanigans, eh?

CliffSedge
 2 years ago
Best ResponseYou've already chosen the best response.1Which angle is 150º?

Dallasb22
 2 years ago
Best ResponseYou've already chosen the best response.0Arc DB is 150 degrees

CliffSedge
 2 years ago
Best ResponseYou've already chosen the best response.1Oh that's for the arc, ok. then that means that angle BCD is half of that because it is an inscribed angle cutting the same arc.

CliffSedge
 2 years ago
Best ResponseYou've already chosen the best response.1(I'm assuming from the picture that you mean arc BAD and not arc BCD, since it could go either way around the circle.)

Dallasb22
 2 years ago
Best ResponseYou've already chosen the best response.0Yes sorry about that, that's how they put it in on the sheet.

CliffSedge
 2 years ago
Best ResponseYou've already chosen the best response.1I think the easiest way to find A is the same property: inscribed angles are half of the arc they cut, so if arc BAD is 150, then arc BCD is the other part of the circle (the whole thing is 360º remember).

Dallasb22
 2 years ago
Best ResponseYou've already chosen the best response.0Yes arc BCD is 210 So angle A is: 105 degrees
Ask your own question
Ask a QuestionFind more explanations on OpenStudy
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.