Find the area of the segment shown in Fig 2, if the radius of the circle is 21 cm and .
In a given circle,
Radius (r) = 21 cm
and
Area of segment AYB = Area of sector OAYB - Area of OAB
Finding the area of AOB
We draw ON AB
In OMA and OMB
OMB
Now,
Therefore,
So, Area of OAB
Therefore area of the segment AYB