Area of a cyclic quadrilateral Calculator

Calculates the area and perimeter of a quadrilateral inscribed in a circle given four sides.

Area of a cyclic quadrilateral
side a
side b
side c
side d

area S
    1.  
perimeter L
    1.  
    Area of a cyclic quadrilateral
    [1-10] /18Disp-Num
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    [1]  2021/04/17 05:15   50 years old level / An office worker / A public employee / Useful /
    Purpose of use
    knowledge
    Comment/Request
    land size 152' x 115' x 150' how to know 4th side size
    [2]  2020/03/03 20:39   50 years old level / An office worker / A public employee / Very /
    Purpose of use
    Zoning area of lot with unequal sides. Great tool! Thanks!
    [3]  2019/07/09 03:59   Under 20 years old / Elementary school/ Junior high-school student / Very /
    Purpose of use
    maths
    [4]  2018/12/27 18:20   40 years old level / Others / Very /
    Purpose of use
    Oil and Gas research
    [5]  2018/03/26 08:07   60 years old level or over / An office worker / A public employee / Very /
    Purpose of use
    calculating land area
    Comment/Request
    very efficient and acurate
    [6]  2017/10/24 16:51   50 years old level / High-school/ University/ Grad student / Very /
    Purpose of use
    LAND AREA
    [7]  2017/09/12 05:00   Under 20 years old / High-school/ University/ Grad student / Very /
    Purpose of use
    for hisab
    Comment/Request
    jiski chturbhuj ki charo bhjaye di hui ho our unki nap alag alag ho
    [8]  2017/06/13 12:18   - / High-school/ University/ Grad student / Very /
    Purpose of use
    Didn''t know Heron''s formula works for quadrilaterals!!!!!!!:)
    Comment/Request
    Maybe show the length for the diagonals.
    [9]  2016/09/24 13:47   Under 20 years old / High-school/ University/ Grad student / Very /
    Purpose of use
    To know all the possible ways of math questions and to score level 7
    Comment/Request
    Helpful to the new future
    [10]  2015/08/07 09:51   40 years old level / An office worker / A public employee / Very /
    Purpose of use
    I got a sketch on which the dimensions were mentioned along with the total area. I want to recheck the area in acres . This was really excellent tool
    Comment/Request
    This is really excellent tool. It will be great if this is avoidable in offline also.

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