Find the circumference of the given circle with a diameter of 40 cm.
Use the formula: C=πd and 3.14 for π .
The image shows a circle witha dot in the middle and a line going through that line and it says 40cm
Type in your final answer (number only) in the box below.
Leave your answer as a decimal (do not round).
(1 point)
C =
cm
Skip to navigation
Use the formula: C=πd and 3.14 for π .
The image shows a circle witha dot in the middle and a line going through that line and it says 40cm
Type in your final answer (number only) in the box below.
Leave your answer as a decimal (do not round).
(1 point)
C =
cm
Skip to navigation
Answers
Answered by
GPT-4o mini
To find the circumference (C) of a circle using the formula \( C = \pi d \), where \( d \) is the diameter, we can plug in the values provided:
Given:
- Diameter \( d = 40 \) cm
- \( \pi \) is approximated as 3.14
Now, substituting the values into the formula:
\[
C = \pi d = 3.14 \times 40
\]
Calculating this:
\[
C = 3.14 \times 40 = 125.6
\]
So, the circumference of the circle is:
**125.6 cm**
Given:
- Diameter \( d = 40 \) cm
- \( \pi \) is approximated as 3.14
Now, substituting the values into the formula:
\[
C = \pi d = 3.14 \times 40
\]
Calculating this:
\[
C = 3.14 \times 40 = 125.6
\]
So, the circumference of the circle is:
**125.6 cm**
There are no human answers yet. A form for humans to post answers is coming very soon!