Furthermore, the parallel sides of a trapezium are known as bases.Īnswer: A rectangle refers to a quadrilateral that consists of four right angles. It refers to a quadrilateral with exactly one pair of parallel sides. Question 3: What is meant by a trapezoid?Īnswer: A trapezoid refers to a 4-sided flat shape with straight sides and it has a pair of parallel opposite sides. The seven types of quadrilaterals are parallelogram, rhombus, kite, rectangle, trapezoid, square, and isosceles trapezoid. Question 2: Name the seven types of quadrilaterals?Īnswer: A quadrilateral refers to a four-sided polygon that has four angles. Question 1: What is the similarity between a square and a rectangleĪnswer : The line segments of both the closed figure shapes are placed at 90° to each other. So the next time you see a four-sided figure, just refer to it as a quadrilateral and reach to conclusions only when you compare it with the rest! Solved Example for You But from this chapter, we have come to know that every quadrilateral is not just a rectangle or square. A trapezium does not show similarity in lengths and angles of sides hence is an irregular quadrilateral.Įvery time we see a tabletop or a handkerchief what comes to our minds are the common type of quadrilaterals, a rectangle or a square. In the above figure, we can see a trapezium with sides AB || DC. In a trapezium, all the sides may not be equal in measurement but one of the pairs of sides has to be parallel to each other. TrapeziumĪmongst the other types of quadrilaterals, a trapezium shows different characteristics, In a trapezium, only one pair of the four sides are parallel to each other. All its sides are equal, thus ST=TU=UV=VS which also happen to form equal angles. In the figure above we see that STUV is a quadrilateral with sides ST || UV and SV || TU. The diagonals in a rhombus meet exactly in the middle at a right angle and are said to bisect with each other. Rhombus shows a very peculiar feature regarding their diagonals. These are sometimes referred to as Diamonds also. In other words, a parallelogram that shows e resemblance to a square as regards its lengths of sides is called a rhombus. WX || YZ and WY || XZ. ∠W =∠X =∠Y=∠Z= 90°Ī rhombus is also a parallelogram but with all sides equal. Every vertex of a square makes a right angle with its sides. A square is a quadrilateral which shows the following characteristic: In a rectangle, all the sides are at the right angle or to say perpendicular to each other. The figure below shows a quadrilateral ABCD and since all its sides are parallel to each other we may also call it a type of parallelogram with line segments placed at right angle to each other. This can be written as AB || CD and AC || BD. ∠A =∠B =∠C=∠D= 90°Ī square is a quadrilateral with all four sides equal. The Rectangle is also a type of parallelogram with a little difference in the angles of the sides. In a parallelogram all the opposite sides are equal and the angles made by each opposite side is also equal. In the figure shown below, PQRS is a quadrilateral and since PQ || RS and PS || QR we call it a parallelogram ParallelogramĪs the name suggests, a parallelogram is a quadrilateral with parallel opposite sides. The various types of quadrilaterals are 1. Browse more Topics under Understanding Elementary Shapes We have been studying about these basic quadrilaterals since our primary classes, but in this part of the chapter we shall bring in light various other types of the quadrilateral, which show properties like square or rectangle yet are not named so. The most common types of quadrilaterals are Squares and Rectangles. Whatever may be the external shape, every quadrilateral has four sides, four vertices and with all its angles adding up to be 360 °. The sides of the quadrilateral may be equal, unequal, parallel or irregular which forms the basis of varying shapes in these four-sided shapes. All closed figures with four sides are called quadrilaterals. Quadrilaterals and Types of Quadrilaterals
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