Area of a trapezoid = 0.5*(sum of parallel sides)*height
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Area of a trapezoid = 0.5*(sum of parallel sides)*height
The area of a trapezoid is equal to half the sum of the lengths of the two parallel sides (base1 and base2) multiplied by the height. The formula for the area of a trapezoid is A = (base1 + base2) * height / 2.
To calculate the area of a trapezoid, you have to know the lengths of three sides because 1/2*(sum of parallel sides)*perpendicular height = area
-- Add the lengths of the two 'bases' (the two parallel sides). -- Multiply the sum by the height of the trapezoid. -- Take 1/2 of the product. That's the trapezoid's area.
A trapezoid has two bases of different lengths. So there's a number missingfrom the question, and the area can't be calculated without it.