Question

My question is..Circles related formulaes?​

Answer 1

Answer:

Area of a circle =πr^2

Circumference of circle =2πr

Answer 2

circumference of circle =2×pie×r

area of circle=pie× r^2

Radius of the circle. i. e D = 2r.

Arc length of circle( l ) (minor) = ( θ /360) x 2 π r = θ π r / 180

Area of the sector (minor) = ( θ /360) x π r 2

The area of the sector = (θ/2) r 2 Sector angle of a circle θ = (180 x l )/ (π r ).

Area of the segment = ( θ /360) x π r 2 – ( 1 /2) x sinθ x r 2 Perimeter of the segment = (θ π r / 180) + 2r sin (θ/2). Chord length of the circle = 2 √ [ h (2r – h ) ] Arc Length of the circle segment = l = 0.01745 x r x θ

Area of a circular ring = 0.7854 (D 2 – d 2) = (π/4) ( D 2 – d 2) Area of a circular ring = π (R 2 – r 2 ).

Hope this will help you ☺