Quantcast

A community for students. Sign up today!

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

izziewoods

  • 2 years ago

If a radius bisects a chord, then the lengths of the parts of the radius on either side of the chord are equal. A. Given B. Unfounded C. Definition of supplementary angles D. Definition of a bisector E. Definition of radius I don't get this at all... can anybody explain this to me really easily?

  • This Question is Closed
  1. ganeshie8
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    the question talks about radius and chords. so lets begin wid drawing a circle, its radius and some chord

  2. izziewoods
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    ok!

  3. izziewoods
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    oh do you want me to draw it?

  4. ganeshie8
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    yes if u can it wud be good :)

  5. izziewoods
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    |dw:1355040041898:dw|

  6. izziewoods
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    so line segment CD is the chord and the radius is line segment AB

  7. izziewoods
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    am I right so far?

  8. izziewoods
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    what should I do next?

  9. mathstudent55
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 2

    Didn't we just do this?

  10. izziewoods
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    @mathstudent55 yes but I am not sure with my answer. you said that just because a chord is perpendicular to a radius, it does not necessarily bisect the radius right?

  11. mathstudent55
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 2

    right

  12. izziewoods
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    so this question is asking about the length of the radius? like I'm not understanding the question well

  13. mathstudent55
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 2

    You knew from before that if a chord is perpendicular to a radius, the radius bisects the chord. Here they're asking you the other way around. If a chord is perpendicular to a radius, does the chord bisect the radius?

  14. mathstudent55
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 2

    |dw:1355040622608:dw|

  15. izziewoods
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    oh then the answer is no

  16. mathstudent55
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 2

    Look at the three chords, one you drew and two I added. Let's say the radius is perpendicular to all 3 chords. Then you know the radius bisects all three chords. Now look at the chords. Only one chord can possibly be a bisector of the radius, but certainly not all three. In reality, there is an infinite number of chords that are perpendicular to that radius, and only one bisects the radius. So to conclude that with any chord that is perpendicular to a radius, that chord bisects the radius it's unfounded.

  17. izziewoods
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    ohhhhh ok I think I get it!! ohohoh omg I get it!!! yeah!!!only one chord bisects the radius!!

  18. mathstudent55
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 2

    Right, but the radius bisects every chord that it is perpendicular to.

  19. izziewoods
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    yes yes!!! thank you thank you thank you!!! I totally get it now!! you explained it to me really easily!!

  20. mathstudent55
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 2

    ok, great, you're welcome

  21. Not the answer you are looking for?
    Search for more explanations.

    Search OpenStudy
    • Attachments:

Ask your own question

Ask a Question
Find 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
  • 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.

This is the testimonial you wrote.
You haven't written a testimonial for Owlfred.