Results 1 to 3 of 3

Math Help - Angles from Tangents

  1. #1
    Gui
    Gui is offline
    Junior Member
    Joined
    Apr 2010
    Posts
    29

    Angles from Tangents

    Hey guys!

    I'm in need of some help again! :/ We're learning about tangents right now, I've got a test tomorrow morning. I've spent at least 5 hours in these 4 problems these past two days, and all I could figure out was 14 (55).

    Please help! Thanks in advance!

    Follow Math Help Forum on Facebook and Google+

  2. #2
    Super Member
    Joined
    Jun 2009
    Posts
    806
    Thanks
    4
    Hi Gui, can you explain, the angles 20,35, 70 and 120 degrees.
    Between AG and AF, I can see 20 and 70 degrees. That is not clear to me.
    Follow Math Help Forum on Facebook and Google+

  3. #3
    A riddle wrapped in an enigma
    masters's Avatar
    Joined
    Jan 2008
    From
    Big Stone Gap, Virginia
    Posts
    2,551
    Thanks
    12
    Awards
    1
    Quote Originally Posted by Gui View Post
    Hey guys!

    I'm in need of some help again! :/ We're learning about tangents right now, I've got a test tomorrow morning. I've spent at least 5 hours in these 4 problems these past two days, and all I could figure out was 14 (55).

    Please help! Thanks in advance!

    Hi Gui,

    [12] Find m \angle GAF

    This angle is formed by the intersection of secants AF and AG.

    The measure of the angle is equal to the difference of the measures of the intercepted arcs.

    [13] Find \angle GMH

    This angle is formed by the tangent MH and chord MG.

    The measure of the angle is equal to one-half the measure of its intercepted arc.

    The intercepted arc here is \widehat{MG}.
    You already know the measure of \widehat{FG}=70

    You can find \widehat{MF} easily by subtracting arcs BC, CM, and FG from 180 since BG is a diameter.

    Then add arcs FG and MF to get the intercepted arc you need. Then take half of it for your answer.

    [14] Find m \angle AEM

    This angle is formed by the intersection of two chords.
    The measure of the angle is equal to one-half the sum of the measures of the intercepted arcs.

    The intercepted arcs are CM and FG.

    Your answer is incorrect.

    [15] Find BE.

    I don't see any segment measures at all in this figure. Therefore, BE cannot be determined.
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. principle angles and related acute angles
    Posted in the Trigonometry Forum
    Replies: 4
    Last Post: December 19th 2011, 07:40 AM
  2. Compound Angles or Double Angles?
    Posted in the Trigonometry Forum
    Replies: 8
    Last Post: July 25th 2010, 10:05 AM
  3. Tangents and working angles...
    Posted in the Geometry Forum
    Replies: 9
    Last Post: January 8th 2010, 04:52 PM
  4. Tangents and ANgles
    Posted in the Geometry Forum
    Replies: 1
    Last Post: May 18th 2009, 12:49 PM
  5. Replies: 1
    Last Post: January 7th 2009, 07:07 PM

Search Tags


/mathhelpforum @mathhelpforum