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You cannot. The angle of the sector MUST be given, although that might be implicitly rather than explicitly.
19.625 units squared
If you have the arc length:where:L is the arc length.R is the radius of the circle of which the sector is part.
Divide the area by pi and then square root it this will give the radius of the circle.
Area = pi*radius2 So, radius = sqrt(area/pi)
You cannot. The angle of the sector MUST be given, although that might be implicitly rather than explicitly.
Find the area of the shaded sector. radius of 3 ...A+ = 7.07
It depends on what information you have: the radius and the area of the sector or the length of the arc.
19.625 units squared
The area of a sector of a circle with radius 12 and arc length 10pi is: 188.5 square units.
The area of a sector in a circle if the radius is 4 cm and the arc has degree 120 is: 16.76 cm2
The area of a sector which subtends an angle of x degrees at the centre is given byA = pi*r^2*x/360so r^2 = 360*A/(pi*x) and then r = sqrt{360*A/(pi*x)}
If the sector of a circle has a central angle of 50 and an area of 605 cm2, the radius is: 37.24 cm
It depends on what else is known about the sector: length of arc, area or some other measure.
If you have the arc length:where:L is the arc length.R is the radius of the circle of which the sector is part.
Divide the area by pi and then square root it this will give the radius of the circle.
(pi * radius squared) * ( sector angle / 360 )