Best Answer

Area of whole circle = pi*r2 = 64*pi

Area of Sector = Area of Whole Circle * Angle of Sector/Angle of Whole Circle

= Area of Whole Circle * 120/360

= Area of Whole Circle / 3

= 64*pi/3

= 67.0 to the nearest tenth.

Q: What is area to the nearest tenth of a 120 degree sector of a circle with radius of 8 ft?

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For A+ it's 20

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.

Circumference of circle: 360/21 times 25 = 3000/7 Radius of sector: (3000/7) divided by (2*pi) = 68 units to the nearest integer

the formula for the area of a sector is measure of arc/360 times (pi)(radius squared) it should come out to be about 1.046 or 1.047, or 1/3(pi) the formula for the area of a sector is measure of arc/360 times (pi)(radius squared) it should come out to be about 1.046 or 1.047, or 1/3(pi)

19.23

Related questions

if a circle has a radius of 12cm and a sector defined by a 120 degree arc what is the area of the sector

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 radius is 12

For A+ it's 20

From your question, we can't tell whether [ 64 pi ] is the area of the circleor the sector.The area of a circle is [ pi R2 ].If [ 64 pi ] is the area of the circle, then the radius is [ 8 ], and we don't careabout the sector.If [ 64 pi ] is the area of the sector, then the area of the full circle is [ 256 pi ](because the 90-degree sector is 1/4 of the circle), and the radius is [ 16 ].

6.5

6.46

6.46

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

Area of the circle = pi*362 = 1296*pi Area of the sector = 30/360 of 1296*pi = 108*pi square units

There are 360 degrees in a circle so it will be 1/3 of pi*62 square units

If you mean a sector with an arc of 110 degrees and an area of 50 square units Area of all the circle: 360/110 times 50 = 163.'63' square units Radius of the circle is the square root of 163.'63'/pi = 7.2171377402 So the radius of the circle is about 7 units