## What is area related to circle?

Area of a circle is πr2, where π=22/7 or ≈3.14 (can be used interchangeably for problem-solving purposes)and r is the radius of the circle. π is the ratio of the circumference of a circle to its diameter.

**How do you solve the area of a circle with Class 10?**

The formula to calculate the area of circle is πr2. Length of an arc of a sector of a circle with radius r and angle with degree measure θ is given as 0360 2r. Area of a sector of a circle with radius r and with degree measure θ is given as 0360 πr2.

**How do you find the area of a shaded region in Class 10?**

From the given figure, we can say that the area of the shaded region is equal to the area obtained by subtracting the area of the circle with C as center and the two semi-circles with AM and MB as diameter from the bigger semi-circle having AB as diameter.

### What is a circle Class 10?

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.

**Are related to circle formula?**

Radius is the distance from the center of a circle to the boundary of the circle. Let us understand all circle formulas using solved examples….List of All Circle Formulas.

Parameters | Circle Formulas |
---|---|

Circumference of a circle formula | C = 2 × π × |

Area of a circle formula | A = π × r2 |

**Are related to circle all formulas?**

We use the circle formula to calculate the area, diameter, and circumference of a circle….Formulas Related to Circles.

Diameter of a Circle | D = 2 × r |
---|---|

Circumference of a Circle | C = 2 × π × r |

Area of a Circle | A = π × r2 |

#### What is Circle class 9?

Circles class 9 – The collection of all points equidistant from a fixed point in a plane is called a circle.

**How many exercises are there in area related to circles Class 10?**

3 exercises

There are 3 exercises in class 10 math chapter 12 (Areas Related to Circles). In first exercise (Ex 12.1), there are only 5 questions.

**What is the area of shaded part?**

Answer: The area of the shaded sector of the circle is A = (θ / 2) × r2 where θ is in radians or (θ / 360) × πr2 where θ is in degrees. Let’s see how we will use the concept of the sector of the triangle to find the area of the shaded sector of the circle.

## What are types of circle?

There are three different types of circles which are tangent circles, concentric circles, and congruent circles.

**How do I learn circle Chapter 9?**

The collection of all the points in a plane, which are at a fixed distance from a fixed point in the plane, is called a circle. A circle is a closed curve all of whose points lie in the same plane and are at the same distance from the centre….Class 9 Exemplar Questions.

Maths | गणित |
---|---|

Science | विज्ञान |

**How many exercises are there in area related to circle?**

There are 3 exercises in class 10 math chapter 12 (Areas Related to Circles).

### How do you find the area of a shaded sector of a circle?

The formula for sector area is simple – multiply the central angle by the radius squared, and divide by 2: Sector Area = r² * α / 2.