Area of trapezium formula

Isosceles Trapezoid An isosceles trapezoid is a trapezoid with congruent base angles and congruent non-parallel sides. A trapezoid is a quadrilateral with only one of its sides parallel. An isosceles trapezoid has many interesting properties that make it unique and help us differentiate it from the other quadrilaterals. Let us discuss them in detail. 1. 2. 3. 4. Properties of Isosceles Trapezoid Following are the properties of an isosceles trapezoid according to the figure given below. • It has an • One pair of sides is parallel and they are the base sides. (AB II DC in the given image) • The remaining sides other than the base are non-parallel and are equal in length. (c = d in the given image) • The diagonals are the same in length. (AC = BD) • The base • The sum of opposite angles is 180° or supplementary. (∠A + ∠C = 180° and ∠B + ∠D = 180°) • The Isosceles Trapezoid Formula Following are the formulas to calculate the area and perimeter of the isosceles trapezoid. Area of isosceles trapezoid To find the area of the isosceles trapezoid we have to add the base sides or parallel sides and divide it by 2 and then multiply the result with height. Area of Isosceles Trapezoid = (sum of parallel sides ÷ 2) × h Perimeter of isosceles trapezoid To find the perimeter of the isosceles trapezoid we have to add all the sides of the isosceles trapezoid. Perimeter of Isosceles Trapezoid = sum of all sides Related Articles on Isosceles Trapezoid Check out the interesting topics to learn...