Answered

Westonci.ca is your go-to source for answers, with a community ready to provide accurate and timely information. Explore thousands of questions and answers from knowledgeable experts in various fields on our Q&A platform. Get immediate and reliable solutions to your questions from a community of experienced professionals on our platform.

What is the definition of the radius of a circle? The distance from the center of a circle to a point of the circle





12. A flower garden is in the shape of a circle with radius 3.8 m. If fencing costs $2.76/m, what is the cost to put a fence around the flower garden?









13. A pizza has 12 slices. Each slice has an area of 85 cm2. What is the diameter of the pizza?
IMAGE DOWN BELOW

Sagot :

okiwix

Answer:

12. $65.90, 13. 36.04cm

Step-by-step explanation:

12. the circumference of the circle is 2pi*r. lets say x is the circumference so x = 2*pi*3.8 = 23.876m. multiply x by 2.76 to get 65.898, round to get 65.90

13. the area of a circle is pi*r^2. the area of the pizza is 12*85=1020cm^2. divide by pi to get 324.676 cm^2. then find the square root to get r=18.019 cm. the diameter = 2r so multiply by 2 to get 36.038cm. I'm not sure what the problem wants to round to so you can round it yourself.

note: for these two problems i used the full pi instead of 3.14. using 3.14 will give you a different answer so it just depends. If the problem wants you to use 3.14, simply resolve the problems and use 3.14 instead of pi wherever required.

We hope our answers were useful. Return anytime for more information and answers to any other questions you have. Thanks for stopping by. We strive to provide the best answers for all your questions. See you again soon. Thank you for visiting Westonci.ca. Stay informed by coming back for more detailed answers.