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] /337Disp-Num
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[1]  2018/10/15 16:36   Male / 30 years old level / Self-employed people / Very /
Purpose of use
To calculate material usage for an irregularly shaped area. Worked great, I'll use it again!
[2]  2018/10/14 13:33   Male / 60 years old level or over / An engineer / Very /
Purpose of use
Calculate roof area for materials purchase
Comment/Request
Excellent tool for aid to project
[3]  2018/10/07 02:13   Male / 30 years old level / Elementary school/ Junior high-school student / Very /
Purpose of use
Property purchase purpose
Bug report
Ab=20
Bc=47
Cd=32
Da=37
[4]  2018/08/20 23:37   Male / 40 years old level / Self-employed people / Very /
Purpose of use
Calculate area of a plot of land
[5]  2018/08/20 15:51   Male / 30 years old level / An engineer / Useful /
Purpose of use
Calculating Plot Area
[6]  2018/07/17 01:47   Male / 50 years old level / A retired people / A little /
Purpose of use
Find the area of a piece of property
Comment/Request
I only know one angle.
[7]  2018/07/12 20:56   Male / 40 years old level / Others / Very /
Purpose of use
FOR DIVIDE THE PLOT
[8]  2018/06/14 01:24   Female / 50 years old level / An office worker / A public employee / Very /
Purpose of use
Calculate lot size for client.
[9]  2018/06/12 00:14   Male / 60 years old level or over / Self-employed people / Very /
Purpose of use
Area of land to be leased
[10]  2018/06/04 20:21   Male / 30 years old level / An office worker / A public employee / Very /
Purpose of use
land area

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