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Perimeter of a trapezoid, perimeter formula calculator

Perimeter of a trapezoid, perimeter formula calculator allows you to find a perimeter of a trapezoid, by the formula, using length of all trapezoid sides.
a:   b:   c:   d:  

Perimeter of a trapezoid

Trapezoid is a convex quadrilateral with at least one pair of parallel sides, called the bases of the trapezoid, and the other two sides are called the legs or the lateral sides.
Formula for perimeter of a triangle: P=a+b+c+d,
where a, b, c, d - sides of a trapezoid