*Circumference of circle = 2πr where r is radius of circle
*Area of circle = πr²
*Length of Arc = (x°/360)×2πr
*Area of sector = (x°/360°)×πr²
*Area of segment = (x°/360°)×πr² -r²SinxCosx
Where x is angle subtended by arc
*Equation of circle :- (x-h)² + (y-k)² = r²
Where coordinate of point on circle is A(x,y) , centre is C(h,k) and radius is "r"
*Area of circle = πr²
*Length of Arc = (x°/360)×2πr
*Area of sector = (x°/360°)×πr²
*Area of segment = (x°/360°)×πr² -r²SinxCosx
Where x is angle subtended by arc
*Equation of circle :- (x-h)² + (y-k)² = r²
Where coordinate of point on circle is A(x,y) , centre is C(h,k) and radius is "r"
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