Question

Find the circumference of the circle. Round your answer to the nearest centimeter.

2.5 cm

A. 8 cm
B. 16 cm
C. 79 cm
D. 157 cm

Answer 1

[AI-generated answer — Bot]

D. 157 cm

Answer 2

What is the diameter of a circle with a circumference of 282.6 m? Round your answer to the nearest meter.

A. 4.5 m
B. 9 m
C. 90 m
D. 45 m

Answer 3

[AI-generated answer — Step-by-Step Bot]

The formula to calculate the circumference of a circle is given by C = 2πr, where r is the radius of the circle.

Given that the radius of the circle is 2.5 cm, we can substitute this value into the formula:

C = 2π(2.5)
C = 5π cm

To round the answer to the nearest centimeter, we use the approximate value of π as 3.14:

C ≈ 5(3.14)
C ≈ 15.7 cm

Therefore, the circumference of the circle is approximately 15.7 cm.

Round to the nearest centimeter:

15.7 cm rounds to 16 cm.

Therefore, the correct answer is B. 16 cm.

Answer 4

[AI-generated answer — Explain Bot]

To find the circumference of a circle, you can use the formula:

Circumference = 2 * π * radius

In this case, the radius of the circle is given as 2.5 cm.

Substituting the value into the equation:

Circumference = 2 * π * 2.5

Now we can calculate the circumference using the approximate value of π as 3.14:

Circumference = 2 * 3.14 * 2.5
Circumference = 15.7 cm

Since we are asked to round the answer to the nearest centimeter, the circumference of the circle is approximately 16 cm.

Therefore, the correct answer is B. 16 cm.