https://www.analyzemath.com/Geometry_calculators/trapezoid_calculator.html

An online calculator to find the angles, height, area and the diagonals of a trapezoid given its four sides.

https://www.mathopenref.com/trapezoidarea.html

The number of square units it takes to completely fill a trapezoid. Formula: Average width ... Use the calculator on the right to calculate height, base lengths and area of a trapezoid. Enter any three values and the missing one will be calculated.

https://www.varsitytutors.com/intermediate_geometry-help/how-to-find-the-length-of-the-side-of-a-trapezoid

Write the formula for finding the area of a trapezoid. ... this problem provides the length for both of the bases as well as the total perimeter, the missing sides can ...

http://www.1728.org/quadtrap.htm

Geometry, Trapezoid Calculator, Calculates Area, Diagonals, Angles, height, altitude, ... Lines AB and DC are the non-parallel sides and are called legs.

https://www.youtube.com/watch?v=nWDgX4ojJag

Feb 3, 2014 ... Learn how to solve problems about trapezoids. A trapezoid is a four sided shape (quadrilateral) such that one pair of opposite sides are parallel ...

https://www.wikihow.com/Find-the-Perimeter-of-a-Trapezoid

If You Know the Height, Length of Top ... Do this by using the SIN button on a scientific calculator. ... missing side of the trapezoid, is about 10.4566 cm.

https://rechneronline.de/pi/trapezoid.php

Calculations at a trapezoid. A trapezoid (or trapezium) is a tetragon with two parellel sides. Enter three side lengths and one angle between two of those sides .

https://sciencing.com/perimeter-trapezoid-missing-side-2393.html

For example: a trapezoid has an area of 171 cm^2, a side of 10 cm and a height of 18 cm. How long is the missing side? Finding it takes some basic principles of  ...

https://www.omnicalculator.com/math/area-of-a-trapezoid

Area of a trapezoid calculator determines the area, perimeter, and side lengths for an arbitrary trapezoid.

https://rechneronline.de/pi/right-trapezoid.php

Calculations at a right trapezoid (or right trapezium). This is a trapezoid with two adjacent right angles. Enter the lengths of the two parallel sides a and c and ...