The circumference of a circle with a diameter of 6.5 centimeters is about 20.42 cm (d x Pi = c)
radius = 65/(2*pi) = 10.3450713 inches
40 cm x 65 cm = 2,600 cm
Endpoints of diameter: (-10, -2) and (4, 6)Midpoint which is the center of the circle: (-3, 2)Radius of the circle: square root of 65Equation of the circle: (x+3)^2 +(y-2)^2 = 65
There are 728.3 revolutions per minute, and the angular speed is 4576 radians per minute. This is how you get these answers: (a). Revolutions per minute. 1. Find the circumference of the circle. C= piX Diameter. In this case, C=7.8539816 2. Turn 65 mph into minutes/ft. Thus, 5280ft = 1 mile. 65X5280= 343200 ft. per hour. 1 hr = 60 minutes. 343200/60 = 5720 ft. / per minute. 3. Finally, divide. 5720/7.8539816 = 728.29 = 728.3. (b). Angular speed = central angle/time = Theta/t 1. 728.3 rpm. Now, since 1 revolution = 2pi, then, (728.3)(2pi) radians per minute. Your answer should be 4576.043859. Round to 4576 radians per minute, and you are done!!
100 degrees east longitude / 65 degrees north latitude is plumb in the middle of northern Siberia, almost but not quite at the Arctic Circle. You don't want to go there.
A circle with a diameter of 65 yards has a circumference of 204.2 yards.
Circumference = 204.2 mm, approx.
204.2 millimetres.
The answer depends on what the 65 mm refers to: the radius of the diameter. Please specify.
pi*65 which is just over 204 mm
Circumference of the circle = 2*pi*65
It is 20.69 inches, approx.
Assuming you are talking about a circle, you simply multiply the diameter by pi. Keep the result (in this case) as 65pi to have it exact, or use an approximation of pi such as 3.1416, and do the multiplication, if you want an actual number.
84/3.14 =27 So the diameter of this circle is about 27 inches
The circumference of a circle of 65cm radius is about 408.41cm(Circumference = 2*pi*65 cm)
Circumference is equal to the diameter multiplied by pi, or 3,14. Multiply 65 x 3.14.
About 408.41 inches.