# Areas related to circle

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## 12 AREAS RELATED TO CIRCLE

For a circle with radius = $\text{r}$,

Circumference

Area

Area of semicircle

Area of sector:

If angle of arc $\text{AB}$ with centre is $\text{θ}$

Area of minor sector

Area of major sector $\text{=}$ A(circle) $-$ A(minor

sector)

Length of arc

Area of segment

Area of segment AB $\text{=}$ A(sector) $-$ A (triangle)