The circumference of a circle can be calculated using the formula C = πd, where C is the circumference, π is a constant approximately equal to 3.14159, and d is the diameter of the circle. Given a diameter of 40 feet, we can plug this value into the formula to find the circumference: C = π(40) = 3.14159(40) = 125.6636 feet. Therefore, the circumference of a circle with a diameter of 40 feet is approximately 125.66 feet.
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Well, honey, if the diameter is 40 feet, then the radius is half of that, which is 20 feet. The circumference of a circle is calculated by multiplying the diameter by π (pi), so in this case, it would be 40 feet times π, which is approximately 125.66 feet. So there you have it, darling, the circumference of that circle is about 125.66 feet.
Oh, dude, you're hitting me with some math here. Okay, so the circumference of a circle is just π times the diameter, which is like, 40 feet in this case. So, the circumference would be 40π feet. That's like, all you need to know, man.
The circumference of a circle, if the diameter is 40 inches, is about 125.7 inches. (C = d x Pi).
Circumference = pi*diameter so diameter = circumference/pi = 40/pi = 12.7324 feet (to 4 dp)
When a circle's diameter is dilated by a scale factor of 0.6, the new diameter will be 0.6 times the original diameter. Since the circumference of a circle is directly proportional to its diameter by the formula C = πd, where C is the circumference and d is the diameter, the new circumference will also be 0.6 times the original circumference. Therefore, the effect of dilating the diameter by a scale factor of 0.6 will be a decrease in the circle's circumference by 40%.
1256 inches ++ Another Answer ++ The formula for finding the Circumference of a circle is C = Pi x D where D is Diameter and Pi is 3.1416. The Radius of a circle is one-half of the Diameter, hence the Diameter of a circle with a 20-inch Radius is 40 inches. Using the formula above, multiply 40 x 3.1416 to find the Circumference: 40 x 3.1416 = 125.664 inches.
By definition pi is the ratio between the circumference and the diameter pi=C/D so C=pi*D and C=pi*40=125.6 (if pi=3.14)