Properties of Kite

This page is all about kites!

A closed figure made with 2 pairs of equal adjacent sides forms the shape of a kite.

In this mini-lesson, we will explore everything about kites.

You can observe the shape of a kite in the kites flown by kids in the sky.

So let's get started!

Do you see anything around that is Kite-shaped?

Examples of kite

Lesson Plan

What Are the Properties of a Kite?

Let us quickly recall the shape Kite and its elements before we learn its properties.

What Is a Kite?

A kite is a quadrilateral in which two pairs of adjacent sides are equal.

The elements of a kite are its 4 angles, its 4 sides, and 2 diagonals.

Let's look at the kite ABCD.

Properties of quadrilaterals: Properties of a kite

Click here to know the elements of kite

The elements of this kite are:

  • \(\angle ABC\)
  • \(\angle BCD\)
  • \(\angle CDA\)
  • \(\angle DAB\)
  • Side AB
  • Side BC
  • Side CD
  • Side AD
  • Diagonal AC
  • Diagonal BD

Properties of a Kite

properies of a kite

A kite has:

  • two pairs of adjacent equal sides

\(AC = BC\) and \(AD = BD\)

  • one pair of opposite angles (which is obtuse) that are equal

\(\angle A = \angle B\)

  • diagonals that are perpendicular to each other

\(AB  \perp CD\)

  • a longer diagonal that bisects the shorter diagonal

\(AO=OB\)

  • a longer diagonal that bisects the pair of opposite angles

\(\angle ACD = \angle DCB\)

\(\angle ADC = \angle CDB\)

Here is a simulation to understand the properties of a kite.

Drag any of the vertices in "red."

Observe how the angles and sides change while displaying the basic properties for that kite.


How Do you Find the Area of a Kite?

Areas of quadrilaterals: area of a kite formula

The area of a kite is half the product of the lengths of its diagonals.

The formula to determine the area of a kite is:

Area = \(\dfrac{1}{2}\times  d_1 \times d_2\)
 
Challenge your math skills
Challenging Questions

     

1. Can a kite be called a parallelogram?
2. Can a kite have sides 12 in, 25 in, 13 in, 25 in? 
        

Solved Examples

Example 1

 

 

Brandon bought a kite whose diagonals are of length 10 in and 20 in.

He wants to find its area.

Can you help him?

Quadrilateral example problem: Finding the area of a kite with diagonals 10 and 20 inches

Solution

The diagonals of the given kite are:

\(\begin{align} d_1&=10\text{ in}\\d_2&=20 \text{ in}\end{align}\)

The area of the kite is calculated using the formula:

\(\begin{align} A&=\dfrac{1}{2}\times d_1\times d_2\\&=\dfrac{1}{2}\times 10\times 20\\&=100 \text{ sq.in.}\end{align}\)

\(\therefore\) Area of the kite = \(100 \text{ in}^2\)
Example 2

 

 

Four friends are flying kites in a park. 

The lengths of the sides of each kite is 12 in, 12 in, 14 in, and 14 in

Determine the sum of the perimeters of the four kites.

Solution

The sides of each kite are:

\(\begin{align} Side_1 &= 12 \text{ in}\\Side_2&=14 \text{ in}\end{align}\)

The perimeter of each kite is calculated using the formula:

\(\begin{align} P&=2\times (Side_1+Side_2)\\&=2\times (12+14)\\&=2\times 26\\&=52 \text{ in}\end{align}\)

The sum of the perimters of four kites is:

\(4\times 52=208 \text{ in}\)

\(\therefore\) The sum of the perimeters of the kites is 208 inches
Example 3

 

 

Identify the pairs of equal sides in the given figure of kite below.

Properties of quadrilaterals: Properties of a kite

Solution

We know that a kite has two pairs of equal adjacent sides.

The pairs of adjacent sides in the above kite are (PQ, QR), (PQ, PS), (QR, RS), and (PS, RS)

Pairs of equal adjacent sides are (PQ, QR) and (PS, RS)

\(\therefore\) Pairs of equal sides are (PQ, QR) and (PS, RS).
 
important notes to remember
Important Notes
  1. A kite is a quadrilateral.
  2. The perimeter of a kite is \(2\times (Side_1 + Side_2)\)
  3. The area of a kite is half the product of its diagonals.
  4. Kite is a cyclic quadrilateral.

Interactive Questions

Here are a few questions for you to practice.

Select/Type your answer and click the "Check Answer" button to see the result.

 
 
 
 

Let's Summarize

We hope you enjoyed learning about the Properties of a Kite with the simulations and practice questions. Now, you will be able to easily solve problems related to the properties of a kite.

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Through an interactive and engaging learning-teaching-learning approach, the teachers explore all angles of a topic.

Be it worksheets, online classes, doubt sessions, or any other form of relation, it’s the logical thinking and smart learning approach that we at Cuemath believe in.


Frequently Asked Questions(FAQs)

1. What is diagonal?

A diagonal is a line segment that joins the opposite vertices of a polygon.

2. Is a kite a parallelogram?

Opposite sides in a parallelogram are always parallel whereas this is not true for kites.Therefore, kite is not a parallelogram.

3. Can two angles of a kite be consecutive and supplementary?

No, two consecutive angles of a kite cannot be supplementary because if one pair of consecutive angles is supplementary, then another pair will also be supplementary.

Since a kite has one pair of equal opposite angles, therefore two pairs of opposite angles will have to be equal.

  
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