Area of a quadrilateral Calculator

Calculates the area and perimeter of a quadrilateral given four sides and two opposite angles.

Area of a quadrilateral
side a
side b
side c
side d
sum of angles θ12

area S
    1.  
perimeter L
    1.  
    Area of a quadrilateral
    [1-10] /385Disp-Num
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    [1]  2020/10/23 22:32   Male / 20 years old level / An office worker / A public employee / Very /
    Purpose of use
    Area for Building, constructing panels
    [2]  2020/09/17 11:20   Female / 20 years old level / An office worker / A public employee / Very /
    Purpose of use
    Calculating area of land lots - real estate marketing
    [3]  2020/09/06 18:21   Male / 20 years old level / Others / Useful /
    Purpose of use
    To memorize
    Comment/Request
    How to calculate area of four sides which are 50ft,59ft,65ft,71ft without knowing (base & height,angles)....
    [4]  2020/09/04 07:02   Male / 20 years old level / High-school/ University/ Grad student / Useful /
    Purpose of use
    Civil engineering project during undergraduate degree
    [5]  2020/08/31 12:03   Male / 60 years old level or over / A retired person / Useful /
    Purpose of use
    I need to divide a piece of land into 5, each with the same area.
    Comment/Request
    I need to be able to get the distances along the edges if the area and angles are known
    [6]  2020/08/23 02:18   Male / Under 20 years old / High-school/ University/ Grad student / Useful /
    Purpose of use
    Find out how many hectares a forest area is.
    [7]  2020/08/17 04:12   Male / 40 years old level / High-school/ University/ Grad student / Very /
    Purpose of use
    AREA IN SQUARE METER
    Comment/Request
    20.8*21.860.6*59.6 AREA IN AQUARE METER I NEED HOW MANY ARES ALSO
    [8]  2020/08/03 21:05   Male / 50 years old level / An office worker / A public employee / Very /
    Purpose of use
    calculate land area
    Comment/Request
    how to find internal angles of an irregular quadrilateral?
    [9]  2020/06/28 01:16   Female / Under 20 years old / Elementary school/ Junior high-school student / Very /
    Purpose of use
    It helped me a lot
    [10]  2020/06/09 23:16   - / - / - / - /
    Comment/Request
    if both angles sum not given then how the area of the quadrilateral will colaculate.Mean only all four sides are given

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