Circumference = 62.8 ft so angle is 20/62.8 x 360 ie 114.6o
10
Circumference of the circle is: pi*20'
The area of circle with a circumference of 20 is: 31.83 units squared.
If the question refers to a square, then circumference = 4d, where d is the length of a side. 20 = 4d therefore d = 20/4 = 5 ft. If the question refers to a circle with a circumference (C) of 20', then C = 2πr, where r is the radius of the circle. 20 = 2πr therefore r = 20 ÷ 2π = 3.18 ft If the question refers to the circumference of a circle with radius 20', then C = 2π x 20 = 40π = 125.66 ft
Circumference = 62.8 ft so angle is 20/62.8 x 360 ie 114.6o
10
The length of the diameter of a circle whose circumference is 62.8 is about 20 units (19.99). (d = c divided by Pi)
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!
The angle of direction change is equal to the angle of arc length on the circle. Thus the fraction of the arc length (the distance the change takes place in, 100 miles) divided by the total circumference of the circle is equal to the angle of the arclength divided by the total angle of the circle i.e. 20/360. Since the circumference is equal to 2*pi*radius the rest is a matter of simple algebra in order to find the radius.
Circumference of the circle is: pi*20'
20/360=arc length/2pi*50; 1/12=arc length/100pi. 100pi/12=arc length. arc length=25pi/3 centimeters, which is approximately 26.17993878 centimeters.
62.83185/pi = 19.99999902 or about 20 units in length.
If the circumference is split into 4 arcs then the 4th arc is 360-20-140-50 = 150 degrees
The area of circle with a circumference of 20 is: 31.83 units squared.
If the question refers to a square, then circumference = 4d, where d is the length of a side. 20 = 4d therefore d = 20/4 = 5 ft. If the question refers to a circle with a circumference (C) of 20', then C = 2πr, where r is the radius of the circle. 20 = 2πr therefore r = 20 ÷ 2π = 3.18 ft If the question refers to the circumference of a circle with radius 20', then C = 2π x 20 = 40π = 125.66 ft
The circumference of a circle if its diameter is 20 inches is: 62.83 inches (diameter x Pi = circumference).