You 80/3.14=to get d = 28, r = 14
Attach 14' of line to a stake in the center of your fence circle,
and use the other end of the line as a guide.
Assuming the 15 feet is the diameter of the circle. Formula to find the circumference of the circle is pi x diameter. 15 × 3.14 = 47.1 feet So the rope will be 47.1 feet long.
62.83 feet
You want the area of a circle, which is pi*r2 Just make sure your radius (r) is in feet and you answer will be square feet.
Rollback
The circumference is approx 4.71 feet.
Because Area and Perimeter are not directly linked. If you were to make the fence into a triangle you would get another area, a circle would give a fourth.
Five feet, because five times four is 20.
There is a problem here. A circle with a 7-foot diameter has a circumference of 21.99 feet, not 10 feet.If the circumference is 10 feet, that would make the diameter 3.183 feet.
3.14 x (r x r) 9 foot diameter circle
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The garden has to be 36-ft by 39-ft. 150-ft of fence will just enclose it, and the area is 1,404 square feet. If the length didn't have to be 3-ft more than the width, then he could make it 37.5-ft square. The same 150-ft of fence would enclose it, but the area would be 1,406.5 square feet ... a full 0.16%, or 2.5 square feet, more.
To determine the amount of fence needed to enclose 2 acres of land, we first need to convert acres to square feet. One acre is equal to 43,560 square feet, so 2 acres would be 87,120 square feet. Next, we need to calculate the perimeter of a square or rectangular area that is 87,120 square feet. Since we don't have the shape specified, we cannot determine the exact length of the fence needed without additional information about the dimensions of the land.