2. Find the circumference of the given circle. Round to the nearest tenth
3.5 cm
O22.0 cm
042.8 cm
0385.cm
011.0 cm
Well, well, well, let's calculate some circumferential fun!
For the circle with a radius of 3.5 cm, the circumference can be found using the formula C = 2πr. And after some chuckles with the math, we find that the circumference is approximately 22.0 cm!
But wait, there's more!
For the circle with a radius of 042.8 cm, the circumference can be calculated as 2π(042.8) = approximately 268.3 cm.
Moving on to the circle with a radius of 0385 cm, its circumference can be determined as 2π(0385) ≈ 2415.2 cm.
Next, we have a little circle with a radius of only 11.0 cm, and its circumference can be found as 2π(11.0) ≈ 69.1 cm.
So, there you have it! The circumferences, all rounded up to the nearest tenth, are 22.0 cm, 268.3 cm, 2415.2 cm, and 69.1 cm. Keep those circles spinning!
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.
Let's calculate the circumference for each of the given circles:
1. Circle with a radius of 2.0 cm:
C = 2π(2.0) ≈ 4π ≈ 12.6 cm (rounded to the nearest tenth)
2. Circle with a radius of 4.28 cm:
C = 2π(4.28) ≈ 8.56π ≈ 26.9 cm (rounded to the nearest tenth)
3. Circle with a radius of 0.385 cm:
C = 2π(0.385) ≈ 0.77π ≈ 2.42 cm (rounded to the nearest tenth)
4. Circle with a radius of 1.1 cm:
C = 2π(1.1) ≈ 2.2π ≈ 6.9 cm (rounded to the nearest tenth)
Therefore, the circumferences of the given circles are approximately as follows:
1. 12.6 cm
2. 26.9 cm
3. 2.4 cm
4. 6.9 cm
To find the circumference of a circle, you can use the formula:
Circumference = 2 * π * radius
Given that the radius of the circle is 3.5 cm, we can substitute this value into the formula:
Circumference = 2 * 3.14 * 3.5
Circumference ≈ 21.98 cm (rounded to the nearest tenth)
Therefore, the circumference of the given circle is approximately 22.0 cm.