Results 1 to 3 of 3

Math Help - Area of Figures and Similar Figures

  1. #1
    Newbie
    Joined
    Apr 2011
    Posts
    9

    Area of Figures and Similar Figures

    In rhombus ABCD, AB=18 and AC=26. Find the area of the rhombus to the nearest tenth.
    Follow Math Help Forum on Facebook and Google+

  2. #2
    Senior Member
    Joined
    Nov 2011
    From
    Crna Gora
    Posts
    420
    Thanks
    64

    Re: Area of Figures and Similar Figures

    From equation :

    |AB|^2=\left(\frac{|AC|}{2}\right)^2+\left(\frac{|  BD|}{2}\right)^2

    you can find value of |BD| an after that calculate area  A :

    A=\frac{|AC|\cdot |BD|}{2}
    Follow Math Help Forum on Facebook and Google+

  3. #3
    MHF Contributor
    skeeter's Avatar
    Joined
    Jun 2008
    From
    North Texas
    Posts
    11,685
    Thanks
    446

    Re: Area of Figures and Similar Figures

    have you made a sketch?

    area, A = \frac{d_1 \cdot d_2}{2}

    where d_1 and d_2 are diagonal lengths ... you should also know that the diagonals of a rhombus are perpendicular and bisect each other.

    hmmm ... Pythagoras?
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Ratio of areas of similar figures
    Posted in the Geometry Forum
    Replies: 7
    Last Post: January 20th 2011, 05:43 AM
  2. Area of Inscribed Figures
    Posted in the Geometry Forum
    Replies: 3
    Last Post: March 28th 2009, 09:13 AM
  3. Finding the area of irregular figures
    Posted in the Geometry Forum
    Replies: 5
    Last Post: February 6th 2009, 06:06 AM
  4. Finding the area of irregular figures 2
    Posted in the Geometry Forum
    Replies: 1
    Last Post: February 6th 2009, 02:54 AM
  5. Similar Figures
    Posted in the Geometry Forum
    Replies: 5
    Last Post: September 14th 2006, 11:25 PM

Search Tags


/mathhelpforum @mathhelpforum