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?
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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.

the answer would be 484

step-by-step explanation:

just multiply 0.484 times 1,000 (formula)