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Q: What is the area of a sector with radius 10 and measure of arc equal to 45?
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What is the radius of a circle if it has a sector area of 662.89 and a 190 degree measure?

For A+ it's 20


What is the area of a sector with radius 6 and measure of arc equal to 120 degrees?

Its square area is: 1/3*pi*62 = 12*pi or 37.699 to 3 decimal places


How do you find radius using angle of a sector?

It depends on what else is known about the sector: length of arc, area or some other measure.


Area of a sector?

pi times the radius squared times the measure of the arc divided by 360


What is the area of a sector with radius 10 and measure of the arc equal to 45 degrees?

Area of circle sector: 45/360 times pi times 10 squared = 39.27 square units rounded to two decimal places


Find the area of a sector of a circle with a 2 feet radius formed by a 30 degree angle?

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)


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

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


What is the measure of the central angle with a sector area of 169.56 and a radius of 9?

Radius is 9 so area of complete circle (360o) is 81 x 3.14 ie 254.34. Angle of sector is therefore 360 x 169.56/254.34 which is 240o


What is the area of a sector whose central angle is ninety degrees and has a radius of ten inches?

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.


If the ratio of a circle's sector to its total area is 78 what is the measure of its sector's arc?

Length of arc = angle of arc (in radians) × radius of circle With a ratio of 7:8 the area of the sector is 7/8 the area of the whole circle. This is the same as saying that the circle has been divided up into 8 equal sectors and 7 have been shaded in. Dividing the circle up into 8 equal sectors will give each sector an angle of arc of 2π × 1/8 7 of these sectors will thus encompass an angle of arc of 2π × 1/8 × 7 = 2π × 7/8 = 7π/4 Thus the length of the arc of the sector is 7π/4 × radius of the circle. --------------------------------- Alternatively, it can be considered that as 7/8 of the area is in the sector, the length of the arc is 7/8 the circumference of the circle = 7/8 × 2π × radius = 7π/4 × radius.


How do you work out the area of a sector using the angle and radius?

the area of a sector = (angle)/360 x PI x radius x radius pi r squared


A circle has a radius of 6.5 inches. The area of a sector of this circle is 75 in2. Approximate the measure of the central angle, in radians, of this sector, rounded to the nearest tenth?

6.5