Circle: A circle is a collection of all points in a plane which are at a constant distance from a fixed point. Centre: The fixed point is called the centre. Radius: The constant distance from the centre is called the radius. Chord: A line segment joining any two points on a circle is called a chord.

Table of Contents

## What is circle for 10th class?

Circle: A circle is a collection of all points in a plane which are at a constant distance from a fixed point. Centre: The fixed point is called the centre. Radius: The constant distance from the centre is called the radius. Chord: A line segment joining any two points on a circle is called a chord.

**What are the properties of circle Class 10?**

Circle Properties

- The circles are said to be congruent if they have equal radii.
- The diameter of a circle is the longest chord of a circle.
- Equal chords of a circle subtend equal angles at the centre.
- The radius drawn perpendicular to the chord bisects the chord.
- Circles having different radius are similar.

### What is special about circles?

The circle is a highly symmetric shape: every line through the centre forms a line of reflection symmetry, and it has rotational symmetry around the centre for every angle.

**Why circle is important in our daily life?**

Circles are still symbolically important today -they are often used to symbolize harmony and unity. For instance, take a look at the Olympic symbol. It has five interlocking rings of different colours, which represent the five major continents of the world united together in a spirit of healthy competition.

#### How can circles be used in real life?

A number of ornaments that we wear are circular in shape. For instance, rings, bracelets, earrings, bangles, etc., all constitute a perfect example of circle-shaped objects.

**Why do humans love circles?**

“They’re softer, they provide some safety, as opposed to angular shapes — the teeth of an animal, the hard shape of a rock. Those are signifiers of danger.” Some scientists believe our preference for circles is likely rooted in the evolution of the brain to pay more attention to smooth, rounded shapes.

## What are real life examples of circles?

14 Circle Examples in Real Life

- Terms related to a Circle. Centre. Radius. Diameter. Arc. Chord. Sector. Segment. Secant. Tangent.
- Examples of Circular-shaped Objects. Dishes. Hub of the Fan. Ornaments. Tyres. Coins. Hula Hoop. Vinyl Record. Eatables. Button. Clock. Dart Board. Roundabouts. Giant Wheel. Compact Disc.

**What is the height of a circle called?**

Sagitta – The height of an arc or segment. The sagitta is the height of an arc. It is the perpendicular from the midpoint of the arc’s chord to the arc itself.

### How many changes can a circle have?

Solution 1. A circle can have infinite tangents. As there are infinite number of points on the circle a circle has many (infinite) tangents.

**Does circle have any sides?**

In our primary education resources, we say that a circle has one curved side. However, it is also possible to challenge older children with the concept that a circle has an infinite amount of straight sides.

#### Why circle is called circle?

The word circle derives from the Greek κίρκος/κύκλος (kirkos/kuklos), itself a metathesis of the Homeric Greek κρίκος (krikos), meaning “hoop” or “ring”. The origins of the words circus and circuit are closely related.

**How class 10 Maths circles important questions with solutions are prepared?**

Class 10 Maths Circles Important Questions with Solutions are prepared solely by subject experts at Vedantu which gets you the crux of crucial concepts explained in the chapter.

## How to prepare for the Chapter 10 circles board exam?

Students may come across a few of these questions in the board exam. So, they must practice them well and give 100% for the exam preparation. Chapter 10 Circles has less number of questions, and there is a scope that objective-based questions, including short answer and long answer questions, will occur in the board examination.

**What is the marks in McQ for Class 10 Maths?**

According to new CBSE Exam Pattern, MCQ Questions for Class 10 Maths Carries 20 Marks. You can also download NCERT Solutions Class 10 Mathsto help you to revise complete syllabus and score more marks in your examinations.

### What are some examples of Class 10 Maths Ch 10 important questions?

Below are a few examples of class 10 maths ch 10 important questions with step-by-step solutions and answer keys. In the figure shown below, O is the centre point of a circle, PQ is a chord in the circle and PT is the tangent at P. If ∠POQ measures 70°, then calculate angle ∠TP.