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] /378Disp-Num
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    [1]  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?
    [2]  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
    [3]  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
    [4]  2020/06/05 02:56   Female / Under 20 years old / Elementary school/ Junior high-school student / Useful /
    Purpose of use
    Geometry Homework
    [5]  2020/05/28 03:32   Male / Under 20 years old / Elementary school/ Junior high-school student / A little /
    Purpose of use
    homework
    Comment/Request
    can you make it able to calculate with only 3 given sides and also able to calculate without the angles
    [6]  2020/05/22 14:02   Male / 20 years old level / An engineer / Very /
    Purpose of use
    area calculation
    [7]  2020/05/16 03:13   Male / 40 years old level / Others / Very /
    Purpose of use
    To find the area of the roughly (but not quite) rectangular bit of land I grew up on after using google maps' ruler tool to measure the approximate length of the property lines
    [8]  2020/05/11 17:45   Male / 60 years old level or over / A retired person / A little /
    Comment/Request
    Gives different areas depending on which opposite angles one chooses
    [9]  2020/04/23 12:51   Female / Under 20 years old / Elementary school/ Junior high-school student / Not at All /
    Purpose of use
    Math homework
    [10]  2020/04/13 22:07   Male / 30 years old level / Self-employed people / Useful /
    Purpose of use
    AREA OF SOD

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