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The circumference of a circle is 132cm what is the radius of the circle in centimeters?
To find the radius of a circle when given the circumference, you can use the formula for the circumference of a circle: C = 2πr, where C is the circumference and r is the radius. Given that the circumference is 132 cm, you can plug this value into the formula: 132 = 2πr. To solve for the radius, divide both sides by 2π: r = 132 / (2π) ≈ 21 cm. Therefore, the radius of the circle is approximately 21 centimeters.
What is the square foot of a 21 foot round pool?
If 21 feet is the diameter, divide it by 2 to get the radius. Then use the formula for a circle: area = pi x radius2. 350 sq ft NOT the 35 the other people answered. A sheet of plywood 4' by 8' is 32 Sq ft thats a really small pool.
What is the perimeter of an ellipse if the major axis is 30MM and the minor axis is 12MM?
A simple question with a horrendously complicated answer. Short of carrying out elliptical integrals, the best I can suggest is the Ramanujan approximation according to which: Perimeter = pi*{3(a + b) - sqrt[10ab + 3(a2 + b2)]} where a and b are the semi-major and semi-minor axes. Substituting a = 15 mm and b = 6 mm gives Perimeter = 69.04 mm. A quick and easy, but roughly approximate method is as follows: The ellipse is between a circle of diameter 30 mm and one of 12 mm. Averaging these two gives a diameter of 21 mm. A circle with a 21 mm diameter has a circumference (perimeter) of 65.97 mm.
What is the radius of the sector when the angle is 21 and the arc length is 25?
Circumference of circle: 360/21 times 25 = 3000/7 Radius of sector: (3000/7) divided by (2*pi) = 68 units to the nearest integer
How many ft are in 7 yd?
Answer: 21 feet. This is because if you multiply 3 feet in a yard times 7 yards, you get 21 feet.
What is the circumference of a circle with the diameter of 21 ft?
It is: 21*pi feet
What is the circumference of a circle that has a diameter of 21?
The circumference of a circle that has a diameter of 21 is about 65.97
What is the circumference of a circle with a diameter of 21 feet Round to the nearest foot?
66 feet
What is the circumference of a 21 circle?
The circumference of a 21 circle is: 65.97 (diameter x pi = circumference).
What is the circumference of a circle if it's diameter is 21 inches?
Circumference = 21*pi
What is the circumference of a 21-mile circle?
The circumference of a circle with a 21 mile diameter is 66 miles (approx).
What is the diameter of a circle with a circumference of 21?
The diameter is approximately 6.7
If a circle has a diameter of 21 what is the circumference?
65.94
What is the circumference of a circle that has a diameter of 21 inches?
Circumference = Diameter x pi = 21 pi = 65.973 inches(rounded)
What is the diameter of a circle if the circumference is 21?
6.687089
What is the diameter of a circle if the circumference is 21 inches?
Its diameter is: 21/pi = 6.685 inches rounded
What is the exact circumference of a circle with a diameter of 21 inches?
65.94
