Question

all formulas in areas related to circles class 10​

Answer 1

Step-by-step explanation:

AREA OF CIRCLE =

$\pi {r}^{2}$

CIRCUMFERENCE OF CIRCLE =

$2\pi \: r$

AREA OF SECTOR

$\pi {r}^{2} \frac{theta}{360}$

ARC LENGTH

$2\pi \: r \: \frac{theta}{360}$

AREA OF SEGMENT

$area \: of \: circle - area \: of \: triangle$

ONE IMPORTANT RELATION BETWEEN ARC LENTH ,ANGLE SUBTENTED AND RADIUS

$l = (r)theta$

MARK ME AS BRAINLIEST

Answer 2

Circle formulae:

• Circumference of a circle =  πd or 2πr, where d is diameter and r is a radius of the circle
• Perimeter of a semicircle = πr + 2r
• Area of a circle = πr²
• Area of a semicircle = 1/2 πr²
• Area of quadrant = 1/4 πr²
• Length of the arc= 2πrθ/360° = πrθ/180°
• Area of sector OACBO = πr²θ/360
• Area of the minor segment  = πr²θ/360−1/2r²sinθ
• Area of the major segment = πr2 – Area of the minor segment
• If a chord subtends a right angle at the centre, then  Area of the corresponding segment = (π/4−1/2)r²
• If a chord subtends an angle of 60° at the centre, then   Area of the corresponding segment = (π/3−√3/2)r²
• If a chord subtends an angle of 120° at the centre, then Area of the corresponding segment = (π/3−√3/4)r²