Trapezoid
a quadrilateral with one pair of parallel sides
A trapezoid is a four-sided geometric shape that has two parallel sides of different lengths and two non-parallel sides of different lengths. The non-parallel sides are known as legs while the parallel sides are known as bases. The height of the trapezoid is the perpendicular distance between its two bases and it is measured along the leg. The formula for calculating the area of a trapezoid is (b1 + b2)/2 * h, where b1 and b2 are the lengths of the two bases and h is the height.
To find the perimeter of a trapezoid, we add up the lengths of all four sides. The formula for finding the perimeter of a trapezoid is P = a + b + c + d, where a and b are the lengths of the non-parallel sides and c and d are the lengths of the parallel sides.
It is important to note that a trapezoid can be classified as an isosceles trapezoid if its legs are equal in length. A trapezoid can also be classified as a right trapezoid if one of its angles is a right angle.
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