Question
Find the circumference of the given circle given a diameter of 40cm Use 3.14 as an approximation a 120 cm b 100cm c 125.6 d 40cm
Answers
GPT-4o mini
To find the circumference of a circle, you can use the formula:
\[
C = \pi \times d
\]
where \( C \) is the circumference and \( d \) is the diameter. Given that the diameter \( d \) is 40 cm and using \( \pi \) as approximately 3.14, you can calculate the circumference as follows:
\[
C = 3.14 \times 40 \, \text{cm}
\]
Calculating that gives:
\[
C = 125.6 \, \text{cm}
\]
Therefore, the correct answer is:
**c) 125.6 cm**.
\[
C = \pi \times d
\]
where \( C \) is the circumference and \( d \) is the diameter. Given that the diameter \( d \) is 40 cm and using \( \pi \) as approximately 3.14, you can calculate the circumference as follows:
\[
C = 3.14 \times 40 \, \text{cm}
\]
Calculating that gives:
\[
C = 125.6 \, \text{cm}
\]
Therefore, the correct answer is:
**c) 125.6 cm**.