A circle with a radius of 22 inches has a circumference of 138.23 inches.
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The circumference of a circle is calculated using the formula C = 2πr, where C is the circumference, π is the mathematical constant pi (approximately 3.14159), and r is the radius of the circle. In this case, since the diameter of the circle is given as 49 inches, the radius would be half of the diameter, which is 24.5 inches. Plugging this value into the formula, the circumference of the 49-inch circle would be approximately 154.06 inches.
In a circle, the circumference and diameter vary directly. Which of the following equations would allow you to find the diameter of a circle with a circumference of 154 if you know that in a second circle the diameter is 14 when the circumference is 44?
The surface of a circle is given by the formula d2pi/4, so for our 44 inch diameter table, that gives 484pi square inches, which is aproximately 1520.531 square inches.
It is very close to 7 cm. Circumference = pi (2r) c = 6.2832 r = 44 44/6.2832 = 7.003
Radius of circle: 44/(2*pi) = 7 cm rounded Area of circle: pi*7^2 = 154 square cm rounded