It is: 36/18pi times 360 = about 229 degrees
Whoever wrote this question for you would be happy to see "pi" in the answer rather than "3.14." So I will use pi. Measure of central angle/360=arc length/2pi*r; measure.../360=pi/2pi*9; measure.../360=1/18; measure...=360/18=20. The measure of the central angle is 20 degrees.
To calculate the measure of a central angle of a regular nine-sided polygon, divide 360 degrees by the number of sides. In this case, divide 360 by 9. The measure of the central angle of a regular nine-sided polygon is 40 degrees.
arc length/circumference=central angle/360 1/9=central angle/360 central angle=40
If it's a regular 9 sided polygon then each interior angle will measure 140 degrees.
It is: 36/18pi times 360 = about 229 degrees
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
Whoever wrote this question for you would be happy to see "pi" in the answer rather than "3.14." So I will use pi. Measure of central angle/360=arc length/2pi*r; measure.../360=pi/2pi*9; measure.../360=1/18; measure...=360/18=20. The measure of the central angle is 20 degrees.
Each central angle of a regular 9 sided polygon: 360/9 = 40 degrees
To calculate the measure of a central angle of a regular nine-sided polygon, divide 360 degrees by the number of sides. In this case, divide 360 by 9. The measure of the central angle of a regular nine-sided polygon is 40 degrees.
40 degrees
suck this dudck.
arc length/circumference=central angle/360 1/9=central angle/360 central angle=40
4/9*pi*r where r is the radius of the circle.
The measure of the central angle divided by 360 degrees equals the arc length divided by the circumference. So 18 degrees/360 degrees=arc length/(9 feet*2pi). 1/20=arc length/18pi feet; arc length=9pi/10 feet. It's refreshing to answer a question that is written with grammatical accuracy!
Each exterior angle will measure 9 degrees
400 exterior angle = 360/9 = 400