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What is the area of a sector with a central angle of 130 degrees and a diameter of 9.9 cm?
Wiki User
∙ 12y ago
Sectors don't have diameter, only radius.
However...
Assuming the the circle has a diameter of 9.9 then the area of the circle is 4.95 x 4.95 x 3.14 which is 76.93785 cm2.
As the sector has a central angle of 130o then its area is 130/360 of the above figure
ie 27.28 cm2 to two decimal places.
Wiki User
∙ 12y ago
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How many sectors would be formed by a circle of each sector had a central angle of 30 degrees?
If each sector has a central angle of 30 degrees then 360/30 = 12 sectors
How many sectors would be formed by a circle if each sector had a central angle of 30 degrees 20?
If each sector has a central angle of 30 degrees then 360/30 = 12 sectors
What is the area of a sector if the central angle is 45 degrees?
An eighth of the area of the circle which, since neither its radius, diameter nor circumference are known, is an unknown quantity.
How can you find the measure of the central angle with the sector area known?
It is found by: (sector area/entire circle area) times 360 in degrees
What is the measure of the central angle of each sector if you divide a circle into five equal sectors?
360 degrees / 5 pieces = 72 degrees
What is the central angle of a circle with a diameter of 20 inches and divided into 20 congruent sectors?
1
How many sectors would be formed by a circle of each sector had a central angle of 30 degrees?
If each sector has a central angle of 30 degrees then 360/30 = 12 sectors
How do you calculate the the arc of a sector?
To calculate the arc length of a sector: calculate the circumference length, using (pi * diameter), then multiply by (sector angle / 360 degrees) so : (pi * diameter) * (sector angle / 360) = arc length
How many sectors would be formed by a circle if each sector had a central angle of 30 degrees 20?
If each sector has a central angle of 30 degrees then 360/30 = 12 sectors
What is the area of a sector if the central angle is 45 degrees?
An eighth of the area of the circle which, since neither its radius, diameter nor circumference are known, is an unknown quantity.
A central angle measuring 120 degrees intercepts an arc in a circle whose radius is 6. What is the area of the sector of the circle formed by this central angle?
The area of the sector of the circle formed by the central angle is: 37.7 square units.
What is the area of a circle if the area of its sector is 49?
The area of the circle is(17,640)/(the number of degrees in the central angle of the sector)
What is the area of the shaded sector if the circle has a radius of 7 and the central angle is 45 degrees?
19.23
How can you find the measure of the central angle with the sector area known?
It is found by: (sector area/entire circle area) times 360 in degrees
What is the relation between the arc length and angle for a sector of a circle?
A sector is the area enclosed by two radii of a circle and their intercepted arc, and the angle that is formed by these radii, is called a central angle. A central angle is measured by its intercepted arc. It has the same number of degrees as the arc it intercepts. For example, a central angle which is a right angle intercepts a 90 degrees arc; a 30 degrees central angle intercepts a 30 degrees arc, and a central angle which is a straight angle intercepts a semicircle of 180 degrees. Whereas, an inscribed angle is an angle whose vertex is on the circle and whose sides are chords. An inscribed angle is also measured by its intercepted arc. But, it has one half of the number of degrees of the arc it intercepts. For example, an inscribed angle which is a right angle intercepts a 180 degrees arc. So, we can say that an angle inscribed in a semicircle is a right angle; a 30 degrees inscribed angle intercepts a 60 degrees arc. In the same or congruent circles, congruent inscribed angles have congruent intercepted arcs.
What is the area of the shaded sector if the circle has a radius of 3 and the central angle is 90 degrees?
Find the area of the shaded sector. radius of 3 ...A+ = 7.07
What is the measure of the central angle of each sector if you divide a circle into five equal sectors?
360 degrees / 5 pieces = 72 degrees
