# Maths formulas for class 10 chapter- Area related to circles Formula

## Class 10 chapter- Area related to circles

### Area of Sector and Segment of a Circle

Area of the sector of angle=

(where r is the radius and θ is the angle of the sector).

Length of an arc APB of a sector of angle θ = θ/360 x 2πr

Area of the segment APB = Area of the sector △APB – Area of △OAB

=  θ/360 x πr2 - △area of OAB

Area of the major sector OAQB = πr2​- Area of the minor sector OAPB

Area of major segment AQB = πr2 - Area of the minor segment APB

### Area related to circle formula

• Circumference (perimeter) of a circle = πd or 2πr,

where d is a diameter and r is a radius of the circle and π = 227

• Area of a circle = πr2
• Area of a semicircle = 1/2 πr2
• Area of quadrant = 1/4 πr2

Physics Wallah prepared detail NCERT Solutions do solve questions given in NCERT text book with the help of NCERT Solution for class 10 Maths. .If any students need to take the online test to check their concepts or undertstanding then they can visit Maths Quiz for class 10.

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