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Not enough information is given to work out the radius of the circle as for instance what is the length of sector's arc in degrees
The radius is 8 feet.
The area of the sector of a circle with a radius of 2 inches and an arc of 60 degrees: 2.094 square inches.
If you're only given the length of the arc, then you can't. You also need to know the fraction of the circle that's in the sector. You can figure that out if you know the angle of the arc, or the radius or diameter of the circle. -- Diameter of the circle = 2 x (radius of the circle) -- Circumference of the circle = (pi) x (Diameter of the circle) -- (length of the arc)/(circumference of the circle) = the fraction of the whole circle that's in the sector or -- (degrees in the arc)/360 = the fraction of the whole circle that's in the sector -- Area of the circle = (pi) x (radius of the circle)2 -- Area of the sector = (Area of the circle) x (fraction of the whole circle that's in the sector)
You cannot. The angle of the sector MUST be given, although that might be implicitly rather than explicitly.
Not enough information is given to work out the radius of the circle as for instance what is the length of sector's arc in degrees
The radius is 8 feet.
The area of the sector of a circle with a radius of 2 inches and an arc of 60 degrees: 2.094 square inches.
It depends on what information you have: the radius and the area of the sector or the length of the arc.
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The area of the sector is: 221.2 cm2
Suppose the radius of the circle is r units and the sector subtends an agle of x radians at the centre of the circle. ThenArea = 0.5*r2*x square units.If x is measured in degrees, this becomesArea = pi*r2*x/360 square units.
Find the area of the shaded sector. radius of 3 ...A+ = 7.07
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.
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 a sector is 0.5*r^2*theta square units where r is the radius measured in linear units and theta is the angle (measured in radians).
19.23