Yahoo Answers is shutting down on May 4th, 2021 (Eastern Time) and beginning April 20th, 2021 (Eastern Time) the Yahoo Answers website will be in read-only mode. There will be no changes to other Yahoo properties or services, or your Yahoo account. You can find more information about the Yahoo Answers shutdown and how to download your data on this help page.

Trending News

Promoted
HorseObsessed
Lv 5
HorseObsessed asked in Science & MathematicsMathematics · 8 years ago

In right triangle HAR altitude AD is drawn to hypotenuse HR. If HD=12 and DR=15 find AH.?

please show work

2 Answers

Relevance
  • Anonymous
    8 years ago

    AD will divide the triangle HAR into 2 right triangles ADR and ADH.

    now, in triangle ADH cos(AHD) = 12/AH

    in triangle HAR cos(AHR) = AH/(12+15)

    = AH/27

    But, AHR = AHD, so, 12/AH = AH/27

    AH = 18

    :)

  • Raffaele
    Lv 7
    8 years ago

    AH = 18

    triangles ARD and AHD are similar

    because both are similar to the bigger RHA

    for details watch this

    http://img15.imageshack.us/img15/8862/righttriangl...

Still have questions? Get your answers by asking now.