Page 1 of 2 12 LastLast
Results 1 to 10 of 20

Thread: URGENT - Maths Help

  1. 27th July 2017, 07:28 PM #1
    weeds's Avatar
    weeds
    weeds is offline Swaggie
    Join Date
    Feb 2005
    Location
    Bracken Ridge - Brisbane - QLD
    Posts
    14,276
    Total Downloaded
    0

    URGENT - Maths Help

    I need to work out the diameter or radius of a circle......however I only have the length of the sides of an equilateral triangle that is drawn inside the circle.

    I will draw a sketch.....

    Edit...need the diameter or radius.
    Reply With Quote Reply With Quote
  2. 27th July 2017, 07:32 PM #2
    weeds's Avatar
    weeds
    weeds is offline Swaggie
    Join Date
    Feb 2005
    Location
    Bracken Ridge - Brisbane - QLD
    Posts
    14,276
    Total Downloaded
    0
    Reply With Quote Reply With Quote
  3. 27th July 2017, 07:35 PM #3
    Homestar's Avatar
    Homestar
    Homestar is offline Super Moderator & CA manager Subscriber
    Join Date
    Aug 2010
    Location
    Sunbury, VIC
    Posts
    20,105
    Total Downloaded
    0
    It's called an inscribed triangle I think. It's been a long time since I've used those brain cells...
    If you need to contact me please email homestarrunnerau@gmail.com - thanks - Gav.
    Reply With Quote Reply With Quote
  4. 27th July 2017, 07:37 PM #4
    Ben_Burdett
    Ben_Burdett is offline Master Supporter
    Join Date
    Jul 2015
    Location
    AU
    Posts
    127
    Total Downloaded
    0
    cool question! i have no idea but to the mathamagician who does please show us the formula on how you work it out
    Reply With Quote Reply With Quote
  5. 27th July 2017, 07:39 PM #5
    weeds's Avatar
    weeds
    weeds is offline Swaggie
    Join Date
    Feb 2005
    Location
    Bracken Ridge - Brisbane - QLD
    Posts
    14,276
    Total Downloaded
    0
    I found a formula but couldn't work it out...you think I can find the formula again.

    Grrrrrrf
    Reply With Quote Reply With Quote
  6. 27th July 2017, 07:41 PM #6
    NavyDiver's Avatar
    NavyDiver
    NavyDiver is offline Very Very Lucky! Gold Subscriber
    Join Date
    Feb 2010
    Location
    Melbourne
    Posts
    10,247
    Total Downloaded
    0
    An equilateral triangle of side 6cm is inscribed in a circle. How do I find the radius of the circle? - Quora
    Reply With Quote Reply With Quote
  7. 27th July 2017, 07:44 PM #7
    Homestar's Avatar
    Homestar
    Homestar is offline Super Moderator & CA manager Subscriber
    Join Date
    Aug 2010
    Location
    Sunbury, VIC
    Posts
    20,105
    Total Downloaded
    0
    I think the answer is 895.38 (radius)

    Sorry, it's 860.25 (radius)
    If you need to contact me please email homestarrunnerau@gmail.com - thanks - Gav.
    Reply With Quote Reply With Quote
  8. 27th July 2017, 07:44 PM #8
    weeds's Avatar
    weeds
    weeds is offline Swaggie
    Join Date
    Feb 2005
    Location
    Bracken Ridge - Brisbane - QLD
    Posts
    14,276
    Total Downloaded
    0
    I need to order a piece of access equipment for a shutdown.......I'm confident it will fit but I need to know how much I have up sleeve before spending $5k purchasing it tonight.
    Reply With Quote Reply With Quote
  9. 27th July 2017, 07:44 PM #9
    NavyDiver's Avatar
    NavyDiver
    NavyDiver is offline Very Very Lucky! Gold Subscriber
    Join Date
    Feb 2010
    Location
    Melbourne
    Posts
    10,247
    Total Downloaded
    0
    This is better if you dont wish to do the maths yourself

    Equilateral Triangle Equations Formulas Calculator - Inscribed Circle Radius GeometryInscribed Circle Radius (r)
    = 430.12595054627
    Reply With Quote Reply With Quote
  10. 27th July 2017, 07:44 PM #10
    weeds's Avatar
    weeds
    weeds is offline Swaggie
    Join Date
    Feb 2005
    Location
    Bracken Ridge - Brisbane - QLD
    Posts
    14,276
    Total Downloaded
    0
    I found this....but it's not making sense to me.

    An equilateral triangle of side 6cm is inscribed in a circle. How do I find the radius of the circle? - Quora
    Reply With Quote Reply With Quote
Page 1 of 2 12 LastLast
« Young Lady having a bad day | ACCC taking Ford to Court »

Tags for this Thread

Bookmarks

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  

Forum Rules

Search AULRO.com ONLY!
 Search All the Web!