Question
Find the circumference of the given circle with a diameter of 40 cm.
its a cercal with a line through it and a dot in the middle and it says 40
Use the formula: C=πd
and 3.14 for π
.
Type in your final answer (number only) in the box below.
Leave your answer as a decimal (do not round).
(1 point)
C =
cm
its a cercal with a line through it and a dot in the middle and it says 40
Use the formula: C=πd
and 3.14 for π
.
Type in your final answer (number only) in the box below.
Leave your answer as a decimal (do not round).
(1 point)
C =
cm
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 substitute the given diameter of 40 cm and use \( \pi \approx 3.14 \).
\[
C = \pi d = 3.14 \times 40
\]
Calculating this:
\[
C = 3.14 \times 40 = 125.6
\]
So the final answer is:
125.6
\[
C = \pi d = 3.14 \times 40
\]
Calculating this:
\[
C = 3.14 \times 40 = 125.6
\]
So the final answer is:
125.6
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