The radius of the circle given above is 7cm and the angle subtended by the arc is 60∘. If the area of ΔOAB is 21cm2, then find the area of segment APBA. (π =227)

The radius of the circle given above is 7cm and the angle subtended b

1.	The radius of the circle given above is 7cm and the angle subtended by the arc is 60∘. If the area of ΔOAB is 21cm2, then find the area of segment APBA. (π =227)
Answer» The radius of the circle given above is 7cm and the angle subtended by the arc is $60^{\circ}$ . If the area of $Δ$ OAB is $21 {c m}^{2}$ , then find the area of segment APBA. $(π = \frac{22}{7})$