Find the circumference of the circle. Round your answer to the nearest hundredth. Use 3.14 or 227 for π. 21 cm
circumference: about
21 cm is supposed to be of some help, but it is not, since you don't say what it represents.
But recall that C = 2πr
To find the circumference of a circle, you can use the formula:
C = 2πr
where C is the circumference, π is the mathematical constant (approximately 3.14), and r is the radius of the circle.
In this case, the radius of the circle is given as 21 cm. Plugging that value into the formula, we get:
C = 2 * 3.14 * 21
Simplifying the calculation, we find:
C ≈ 131.88 cm
Therefore, the circumference of the circle is approximately 131.88 cm. Rounded to the nearest hundredth, it would be 131.89 cm.
To find the circumference of a circle, you can use the formula C = 2πr, where C represents the circumference and r represents the radius of the circle.
In this case, you are given the radius of the circle as 21 cm. So, you can substitute this value into the formula:
C = 2π(21)
Next, you need to choose the value to use for π. You are given two options: 3.14 and 227. Let's use 3.14 for this calculation.
C = 2(3.14)(21)
Now, you can simplify this expression:
C = 6.28(21)
C = 131.88
Rounded to the nearest hundredth, the circumference of the circle is approximately 131.88 cm.