In Euclidean geometry, a square is a four-sided 2D figure whose amount of internal angles is 360°. The word quadrilateral is acquired from 2 Latin native ‘quadri’ and ‘latus’ definition four and also side respectively. Therefore, identify the properties of quadrilateral is crucial when make the efforts to differentiate them from various other polygons.

You are watching: True or false a square is a rectangle

So, what room the nature of quadrilaterals?There room two nature of quadrilaterals:

A quadrilateral have to be closed shape with 4 sidesAll the internal angles the a quadrilateral sum up come 360°

In this article, you will get an idea about the 5 varieties of quadrilaterals and also get come know about the properties of quadrilaterals.

This is what you’ll review in the article:

Different varieties of quadrilaterals

Here is a video clip explaining the properties of quadrilaterals:

The diagram given below shows a quadrilateral ABCD and the amount of its inner angles. All the inner angles sum up to 360°.

Thus, ∠A + ∠B + ∠C + ∠D = 360°


Properties that rhombus

A rhombus is a square which has the adhering to four properties:

Opposite angles are equalAll sides are equal and, the opposite sides room parallel to each otherDiagonals bisect each other perpendicularlySum of any two adjacent angles is 180°Rhombus recipe – Area and perimeter of a rhombus

If the next of a rhombus is a then, perimeter of a rhombus = 4a

If the length of 2 diagonals that the rhombus is d1 and also d2 then the area the a rhombus = ½× d1 × d2

These exercise questions will assist you solidify the nature of rhombus


A trapezium (called Trapezoid in the US) is a square that has actually only one pair of parallel sides. The parallel political parties are referred to as ‘bases’ and also the various other two sides are dubbed ‘legs’ or lateral sides.

Properties the Trapezium

A trapezium is a quadrilateral in i beg your pardon the complying with one property:

Only one pair of the opposite sides room parallel to each otherTrapezium recipe – Area and perimeter of a trapezium

If the elevation of a trapezium is ‘h’(as displayed in the over diagram) then:

Perimeter that the trapezium= amount of lengths of all the sides = ab + BC + CD + DAArea the the trapezium =½ × (Sum the lengths that parallel sides) × h = ½ × (AB + CD) × h

These exercise questions will assist you solidify the properties of trapezium

Properties of quadrilaterals

The below table summarizes every the nature of the quadrilaterals that we have actually learned for this reason far:

Properties the quadrilateralsRectangleSquareParallelogramRhombusTrapezium
All Sides are equal
Opposite Sides are equal
Opposite Sides space parallel
All angles space equal
Opposite angles space equal
Sum of two adjacent angles is 180
Bisect every other
Bisect perpendicularly

The listed below image likewise summarizes the nature of quadrilaterals:

Important quadrilateralformulas

The below table summarizes the recipe on the area and also perimeter the different types of quadrilaterals:

Quadrilateral formulasRectangleSquareParallelogramRhombusTrapezium
Areal × bl × h½× d1 × d2½× (Sum that parallel sides) × height
Perimeter2 × (l + b)4a2 × (l + b)4aSum of all the sides

Further reading:

Quadrilateral exercise Question

Let’s exercise the application of nature of quadrilaterals on the following sample questions:

GMAT Quadrilaterials practice Question 1

Adam wants to develop a fence approximately his rectangle-shaped garden of length 10 meters and also width 15 meters. How countless meters that fence he should buy to fence the whole garden?

20 meters25 meters30 meters40 meters50 metersSolution

Step 1: Given

Adam has a rectangle-shaped garden.It has a length of 10 meters and also a broad of 15 meters.He desires to construct a fence around it.

Step 2: to find

The length required to develop the fence around the whole garden.

Step 3: Approach and also Working out

The fence can only be built about the external sides that the garden.

So, the full length of the fence required= sum of lengths of all the sides of the garden.Since the garden is rectangular, the amount of the length of every the political parties is nothing but the perimeter of the garden.Perimeter = 2 × (10 + 15) = 50 metres

Hence, the forced length of the fence is 50 meters.

Therefore, alternative E is the exactly answer.

GMAT Quadrilaterials practice Question 2

Steve desires to repaint one rectangular-shaped wall surface of his room. The cost to paint the wall is $1.5 every square meter. If the wall is 25 meters long and 18 meter wide, then what is the full cost to paint the wall?

$ 300$ 350$ 450$ 600$ 675Solution

Step 1: Given

Steve wants to repaint one wall of his room.The wall surface is 25 meter long and 18 meters wide.Cost to repaint the wall surface is $1.5 every square meter.

Step 2: come find

The full cost to repaint the wall.

Step 3: Approach and also Working out

A wall surface is painted across its whole area.So, if we discover the full area of the wall in square meters and also multiply the by the expense to repaint 1 square meter of the wall then we deserve to the full cost.Area that the wall surface = length × Breadth = 25 metres × 18 metres = 450 square metreTotal cost to repaint the wall surface = 450 × $1.5 = $675

Hence, the exactly answer is option E.

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We expect by now you would have actually learned the different species of quadrilaterals, your properties, and also formulas and how to apply these concepts to solve questions on quadrilaterals. The application of square is necessary to fix geometry questions on the GMAT. If you are planning to take it the GMAT, us can aid you with high-quality study material which girlfriend can access for free by registering here.

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