Area = r2*A where A is the angle measure in radians.
= 8*8*80*pi/180 = 89.361 square units.
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Find the area of the shaded sector. radius of 3 ...A+ = 7.07
The area of the sector is: 221.2 cm2
If the sector of a circle has a central angle of 50 and an area of 605 cm2, the radius is: 37.24 cm
Area of the sector is: (50/360)*pi*6 squared = 5*pi or about 15.708 rounded to 3 decimal places
It depends on what information you have: the radius and the area of the sector or the length of the arc.