Area of a trapezoid Calculator

Calculates the area of a trapezoid given two parallel sides and the height.

Area of a trapezoid
side a
    1. parallel a,b
side b
height h

area S
    1.  
    Area of a trapezoid
    [1-10] /27Disp-Num
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    [1]  2021/09/23 23:05   40 years old level / An office worker / A public employee / Very /
    Purpose of use
    Calculating areas to resurface using bitumen macadam (tarmac)
    Comment/Request
    Thanks!
    [2]  2021/05/06 15:20   60 years old level or over / - / Very /
    Purpose of use
    concrete patio
    [3]  2021/03/30 17:55   Under 20 years old / Others / A little /
    Purpose of use
    needs the ability
    Comment/Request
    needs the ability to change the left and right sides
    [4]  2021/02/25 15:48   Under 20 years old / Elementary school/ Junior high-school student / Not at All /
    Purpose of use
    find area of trapezoid with height unknown
    [5]  2021/02/23 13:14   - / High-school/ University/ Grad student / Useful /
    Purpose of use
    Catching up on late Math work
    [6]  2021/01/20 15:14   Under 20 years old / Elementary school/ Junior high-school student / Useful /
    Purpose of use
    Help with school
    [7]  2020/09/21 19:12   20 years old level / An engineer / Very /
    Purpose of use
    Calculations for an engineering project at work
    [8]  2020/07/24 10:57   20 years old level / High-school/ University/ Grad student / Very /
    Purpose of use
    Surface of roof in garden wasa needed
    [9]  2020/01/30 01:10   Under 20 years old / Elementary school/ Junior high-school student / - /
    Purpose of use
    help with homework
    [10]  2019/11/27 17:47   20 years old level / A homemaker / Very /
    Purpose of use
    Designing home floorplan
    Comment/Request
    It would be nice if a formula to find the lengths of the diagonal sides of trapezoid was included

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