Get expert advice and community support for your questions on IDNLearn.com. Ask your questions and receive prompt, detailed answers from our experienced and knowledgeable community members.
Sagot :
To find the circumference of a circle, we use the formula:
[tex]\[ C = \pi \times d \][/tex]
where [tex]\( C \)[/tex] is the circumference and [tex]\( d \)[/tex] is the diameter of the circle.
Given:
- The diameter ([tex]\( d \)[/tex]) of the CD is 12 cm.
Let's plug the diameter into the formula:
[tex]\[ C = \pi \times 12 \][/tex]
Using the value of [tex]\(\pi \)[/tex] (approximately 3.14159), we can calculate:
[tex]\[ C = 3.14159 \times 12 \][/tex]
This multiplication gives the circumference:
[tex]\[ C \approx 37.69908 \][/tex]
To the nearest centimeter, we round this result:
[tex]\[ 37.69908 \approx 38 \][/tex]
Thus, the circumference of the CD, rounded to the nearest centimeter, is:
[tex]\[ \boxed{38 \text{ cm}} \][/tex]
So, the correct answer to the question is:
B. 38 cm
[tex]\[ C = \pi \times d \][/tex]
where [tex]\( C \)[/tex] is the circumference and [tex]\( d \)[/tex] is the diameter of the circle.
Given:
- The diameter ([tex]\( d \)[/tex]) of the CD is 12 cm.
Let's plug the diameter into the formula:
[tex]\[ C = \pi \times 12 \][/tex]
Using the value of [tex]\(\pi \)[/tex] (approximately 3.14159), we can calculate:
[tex]\[ C = 3.14159 \times 12 \][/tex]
This multiplication gives the circumference:
[tex]\[ C \approx 37.69908 \][/tex]
To the nearest centimeter, we round this result:
[tex]\[ 37.69908 \approx 38 \][/tex]
Thus, the circumference of the CD, rounded to the nearest centimeter, is:
[tex]\[ \boxed{38 \text{ cm}} \][/tex]
So, the correct answer to the question is:
B. 38 cm
Thank you for contributing to our discussion. Don't forget to check back for new answers. Keep asking, answering, and sharing useful information. Your search for answers ends at IDNLearn.com. Thanks for visiting, and we look forward to helping you again soon.