Ask a New Question
Menu

What is the circumference of a circle with a radius of 1.875 cm.

What is the circumference to the hundredths place.

answers:

11.79

44.18

12

11.78

3 answers

The circumference \( C \) of a circle is calculated using the formula:

\[ C = 2 \pi r \]

where \( r \) is the radius of the circle. Given that the radius \( r = 1.875 \) cm, we can substitute this value into the formula:

\[ C = 2 \pi (1.875) \]

Using \( \pi \approx 3.14159 \), we can calculate the circumference:

\[ C \approx 2 \times 3.14159 \times 1.875 \approx 11.785 \]

Rounding this to the hundredths place gives us:

\[ C \approx 11.79 , \text{cm} \]

So, the circumference of the circle to the hundredths place is 11.79 cm.

are your sure its 11.79?

Let's double-check the calculation for clarity.

The formula for the circumference \( C \) of a circle is given by:

\[ C = 2 \pi r \]

Given that the radius \( r = 1.875 \) cm, we substitute this value into the formula:

  1. Calculate \( 2 \times 1.875 \): \[ 2 \times 1.875 = 3.75 \]

  2. Now multiply by \( \pi \) (using \( \pi \approx 3.14159 \)): \[ C \approx 3.75 \times 3.14159 \approx 11.786 \]

  3. Rounding \( 11.786 \) to the hundredths place gives us 11.79.

So, yes, I confirm that the circumference of the circle with a radius of 1.875 cm is approximately 11.79 cm to the hundredths place.