The area of the sector is: 221.2 cm2
Find the area of the shaded sector. radius of 3 ...A+ = 7.07
If the sector of a circle has a central angle of 50 and an area of 605 cm2, the radius is: 37.24 cm
If the angle at the centre is 60° then the sector occupies 1/6 of the circle as 60/360 = 1/6. The area of a circle = πr² The area of the sector = 1/6.π3² = 9/6.π = 4.712 square units.
The area is r^2*x where r is the radius of the circle and x is the angle measured in radians. If you are still working in degrees then Area = (y/180)*r^2, where the angle is y.
The area of the sector is: 221.2 cm2
Find the area of the shaded sector. radius of 3 ...A+ = 7.07
19.23
The area of the sector of the circle formed by the central angle is: 37.7 square units.
The radius of the sector with an angle of 27 degrees and arc of 12cm is: 25.46 cm
If the sector of a circle has a central angle of 50 and an area of 605 cm2, the radius is: 37.24 cm
Well a circle has 360 degrees so a sector of 90 degrees has an area equal to 90/360 (or 1/4) of a circle with the equivalent radius. The area of a circle is defined as PI*Radius^2 so the area of a 90 degree sector will be 1/4*PI*Radius^2. The area will be 1/4*3.14*10^2 or 78.5 in^2.
You cannot. The angle of the sector MUST be given, although that might be implicitly rather than explicitly.
Area of a sector of a circle = (pi) x (radius)2 x (central angle of the sector / 360)
If the angle at the centre is 60° then the sector occupies 1/6 of the circle as 60/360 = 1/6. The area of a circle = πr² The area of the sector = 1/6.π3² = 9/6.π = 4.712 square units.
The area of the circle is(17,640)/(the number of degrees in the central angle of the sector)
Assuming the shaded sector has the angle of 100o (without seeing the diagram, it could be the other sector, ie the one with an angle of 260o): The sector is 1000 ÷ 360o = 5/18 of the circle. Thus its area is 5/18 that of the circle: area = 5/18 x π x 82 ~= 55.9 units2