The angles adjacent to their respective bases are congruent.The formula to calculate the perimeter of an isosceles trapezoid is Perimeter = sum of all sides of the isosceles trapezoid Isosceles Trapezoid DefinitionĪn isosceles trapezoid is a trapezoid with oblique sides congruent. Perimeter of Isosceles Trapezoid = sum of all sides Examples on Isosceles Trapezoid To find the perimeter of the isosceles trapezoid we have to add all the sides of the 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.Īrea of Isosceles Trapezoid = (sum of parallel sides ÷ 2) × h Perimeter of isosceles trapezoid (PQ ⊥ DC)įollowing are the formulas to calculate the area and perimeter of the isosceles trapezoid. The line segment joining the midpoints of the parallel sides is perpendicular to the bases.The sum of opposite angles is 180° or supplementary.The remaining sides other than the base are non-parallel and are equal in length.One pair of sides is parallel and they are the base sides.It has no rotational symmetry and one line of symmetry joining the midpoint of the parallel sides.
Properties of Isosceles Trapezoidįollowing are the properties of an isosceles trapezoid according to the figure given below. Look at the image below-showing sides c and d are equal in lengths and opposite sides a and b (bases of the trapezoid) are parallel to each other. In other words, if two opposite sides (bases) of the trapezoid are parallel, and the two non-parallel sides are of equal lengths, then it is an isosceles trapezoid. Isosceles Trapezoid DefinitionĪn isosceles trapezoid can be defined as a trapezoid in which non-parallel sides and base angles are of the same measure. An isosceles trapezoid has many interesting properties that make it unique and help us differentiate it from the other quadrilaterals. A trapezoid is a quadrilateral with only one of its sides parallel. Sample Problems on Perimeter of Isosceles TrapezoidĪn isosceles trapezoid is a trapezoid with congruent base angles and congruent non-parallel sides.Sample Problems on Area of Isosceles Trapezium.What is the Formula for Perimeter of an Isosceles Trapezoid?.What is the Formula for Area of an Isosceles Trapezoid?.What is the Difference Between a Trapezoid and an Isosceles Trapezoid?.If One Base Angle of Isosceles Trapezoid is 30°.What are the Properties of an Isosceles Trapezoid?.Triangle, Right Triangle, Isosceles Triangle, IR Triangle, Quadrilateral, Rectangle, Golden Rectangle, Rhombus, Parallelogram, Half Square Kite, Right Kite, Kite, Right Trapezoid, Isosceles Trapezoid, Tri-equilateral Trapezoid, Trapezoid, Obtuse Trapezoid, Cyclic Quadrilateral, Tangential Quadrilateral, Arrowhead, Concave Quadrilateral, Crossed Rectangle, Antiparallelogram, House-Shape, Symmetric Pentagon, Diagonally Bisected Octagon, Cut Rectangle, Concave Pentagon, Concave Regular Pentagon, Stretched Pentagon, Straight Bisected Octagon, Stretched Hexagon, Symmetric Hexagon, Parallelogon, Concave Hexagon, Arrow-Hexagon, Rectangular Hexagon, L-Shape, Sharp Kink, T-Shape, Square Heptagon, Truncated Square, Stretched Octagon, Frame, Open Frame, Grid, Cross, X-Shape, H-Shape, Threestar, Fourstar, Pentagram, Hexagram, Unicursal Hexagram, Oktagram, Star of Lakshmi, Double Star Polygon, Polygram, PolygonĬircle, Semicircle, Circular Sector, Circular Segment, Circular Layer, Circular Central Segment, Round Corner, Circular Corner, Circle Tangent Arrow, Drop Shape, Crescent, Pointed Oval, Two Circles, Lancet Arch, Knoll, Annulus, Annulus Sector, Curved Rectangle, Rounded Polygon, Rounded Rectangle, Ellipse, Semi-Ellipse, Elliptical Segment, Elliptical Sector, Elliptical Ring, Stadium, Spiral, Log. 1D Line, Circular Arc, Parabola, Helix, Koch Curve 2D Regular Polygons:Įquilateral Triangle, Square, Pentagon, Hexagon, Heptagon, Octagon, Nonagon, Decagon, Hendecagon, Dodecagon, Hexadecagon, N-gon, Polygon Ring
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